Intervention engagement moderates the dose-response relationships in a dietary intervention

Journal article

Lippke, Sonia, Corbet, Jana M., Lange, Daniela, Parschau, Linda and Schwarzer, Ralf. (2016). Intervention engagement moderates the dose-response relationships in a dietary intervention. Dose-Response. 14(1), pp. 1 - 10. https://doi.org/10.1177/1559325816637515
AuthorsLippke, Sonia, Corbet, Jana M., Lange, Daniela, Parschau, Linda and Schwarzer, Ralf
Abstract

Behavioral interventions could lead to changes in behavior through changes in a mediator. This dose–response relationship might only hold true for those participants who are actively engaged in interventions. This Internet study investigated the role of engagement in a planning intervention to promote fruit and vegetable consumption in addition to testing the intervention effect on planning and behavior. A sample of 701 adults (mean = 38.71 years, 81% women) were randomly assigned either to a planning intervention (experimental group) or to one of 2 control conditions (untreated waiting list control group or placebo active control group). Moderated mediation analyses were carried out. Significant changes over time and time × group effects revealed the effectiveness of the intervention. The effect of the intervention (time 1) on changes in behavior (time 3; 1 month after the personal deadline study participants set for themselves to start implementing their plans) was mediated by changes in planning (time 2; 1 week the personal deadline). Effects of planning on behavior were documented only at a moderate level of intervention engagement. This indicates an inverse U-shaped dose–response effect. Thus, examining participants’ intervention engagement allows for a more careful evaluation of why some interventions work and others do not.

Keywordsmoderated mediation; randomized controlled trial; intentions; planning; nutrition
Year2016
JournalDose-Response
Journal citation14 (1), pp. 1 - 10
PublisherUniversity of Massachusetts
ISSN1559-3258
Digital Object Identifier (DOI)https://doi.org/10.1177/1559325816637515
Scopus EID2-s2.0-84961640323
Open accessOpen access
Page range1 - 10
Research GroupInstitute for Positive Psychology and Education
Publisher's version
License
Place of publicationUnited States of America
EditorsJ.Edward
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Ernsting, A, Schwarzer, Ralf, Lippke, S and Schneider, M. (2013). Relationship between health climate and affective commitment in the workplace. International Journal of Health Promotion and Education. https://doi.org/10.1080/14635240.2012.758886
Positive experience, self-efficacy, and action control predict physical activity changes: A moderated mediation analysis
Parschau, Linda, Fleig, Lena, Koring, Milena, Lange, Daniela, Knoll, Nina, Schwarzer, Ralf and Lippke, Sonia. (2013). Positive experience, self-efficacy, and action control predict physical activity changes: A moderated mediation analysis. British Journal of Health Psychology. 18(2), pp. 395 - 406. https://doi.org/10.1111/j.2044-8287.2012.02099.x
Depressive symptoms interfere with post-rehabilitation exercise : Outcome expectancies and experience as mediators
Pomp, S, Fleig, L, Schwarzer, Ralf and Lippke, S. (2012). Depressive symptoms interfere with post-rehabilitation exercise : Outcome expectancies and experience as mediators. Psychology, Health & Medicine. 17(6), pp. 698 - 708. https://doi.org/10.1080/13548506.2012.661864
Nicht-lineare Zusammenhänge zwischen Intention und Verhalten: Eine Längsschnittstudie zu körperlicher Aktivität und sozial-kognitiven Prädiktoren [Non-linear relationship between intentions and behavior: A longitudinal study investigating physical activity and its social-cognitive predictors]
Lippke, Sonia, Ernsting, Anna, Richert, Jana, Parschau, Linda, Koring, Milena and Schwarzer, Ralf. (2012). Nicht-lineare Zusammenhänge zwischen Intention und Verhalten: Eine Längsschnittstudie zu körperlicher Aktivität und sozial-kognitiven Prädiktoren [Non-linear relationship between intentions and behavior: A longitudinal study investigating physical activity and its social-cognitive predictors]. Zeitschrift fur Gesundheitspsychologie. 20(3), pp. 105 - 114. https://doi.org/10.1026/0943-8149/a000064
A combined planning and self-efficacy intervention to promote physical activity : A multiple mediation analysis
Koring, M, Richert, J, Parschau, L, Ernsting, A, Lippke, S and Schwarzer, Ralf. (2012). A combined planning and self-efficacy intervention to promote physical activity : A multiple mediation analysis. Psychology, Health & Medicine. 17(4), pp. 488 - 498. https://doi.org/10.1080/13548506.2011.608809
Affective and health-related outcome expectancies for physical activity in older adults
Gellert, P, Ziegelmann, J and Schwarzer, Ralf. (2012). Affective and health-related outcome expectancies for physical activity in older adults. Psychology and Health. 27(7), pp. 816 - 828. https://doi.org/10.1080/08870446.2011.607236
A mediator model of sunscreen use : A longitudinal analysis of social-cognitive predictors and mediators
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). A mediator model of sunscreen use : A longitudinal analysis of social-cognitive predictors and mediators. International Journal of Behavioral Medicine. 19(1), pp. 65 - 72. https://doi.org/10.1007/s12529-011-9153-x
Changes in social-cognitive variables are associated with stage transitions in physical activity
Parschau, L, Richert, J, Koring, M, Ernsting, A, Lippke, S and Schwarzer, Ralf. (2012). Changes in social-cognitive variables are associated with stage transitions in physical activity. Health Education Research. 27(1), pp. 129 - 140. https://doi.org/10.1093/her/cyr085
Longitudinal mental health impact among police responders to the 9/11 terrorist attack
Bowler, Rosemarie, Harris, Matthew, Li, Jiehui, Gocheva, Vihra, Stellman, Steven, Wilson, Katherine, Alper, Howard, Schwarzer, Ralf and Cone, James. (2012). Longitudinal mental health impact among police responders to the 9/11 terrorist attack. American Journal of industrial Medicine. 55(4), pp. 297 - 312. https://doi.org/10.1002/ajim.22000
Translating intentions into sunscreen use : An interaction of self-efficacy and appearance norms
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). Translating intentions into sunscreen use : An interaction of self-efficacy and appearance norms. Psychology, Health & Medicine. 17(4), pp. 447 - 456. https://doi.org/10.1080/13548506.2011.613941
Depressive symptoms interfere with post-rehabilitation exercise : Outcome expectancies and experience as mediators
Pomp, S, Fleig, L, Schwarzer, Ralf and Lippke, S. (2012). Depressive symptoms interfere with post-rehabilitation exercise : Outcome expectancies and experience as mediators. Psychology, Health & Medicine. 17(6), pp. 698 - 708. https://doi.org/10.1080/13548506.2012.661864
A combined planning and self-efficacy intervention to promote physical activity : A multiple mediation analysis
Koring, M, Richert, J, Parschau, L, Ernsting, A, Lippke, S and Schwarzer, Ralf. (2012). A combined planning and self-efficacy intervention to promote physical activity : A multiple mediation analysis. Psychology, Health & Medicine. 17(4), pp. 488 - 498. https://doi.org/10.1080/13548506.2011.608809
Translating intentions into sunscreen use : An interaction of self-efficacy and appearance norms
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). Translating intentions into sunscreen use : An interaction of self-efficacy and appearance norms. Psychology, Health & Medicine. 17(4), pp. 447 - 456. https://doi.org/10.1080/13548506.2011.613941
Health-specific optimism mediates between objective and perceived physical functioning in older adults
Schwarzer, Ralf, Schuz, B, Wurm, S, Warner, Lisa and Tesch-R├â┬Âmer, Clemens. (2012). Health-specific optimism mediates between objective and perceived physical functioning in older adults. Journal of Behavioral Medicine. 35(4), pp. 400 - 406. https://doi.org/10.1007/s10865-011-9368-y
Adherence to physical and mental activity interventions: Coping plans as a mediator and prior adherence as a moderator
Evers, A, Klusmann, V, Schwarzer, Ralf and Heuser, I. (2012). Adherence to physical and mental activity interventions: Coping plans as a mediator and prior adherence as a moderator. British Journal of Health Psychology. 17(3), pp. 477 - 491. https://doi.org/10.1111/j.2044-8287.2011.02049.x
Does Adherence Moderate the Effect of Physical or Mental Training on Episodic Memory in Older Women?
Evers, A, Klusmann, V, Schwarzer, Ralf and Heuser, I. (2012). Does Adherence Moderate the Effect of Physical or Mental Training on Episodic Memory in Older Women? Advances in Physical Education. 2(2), pp. 68 - 72. https://doi.org/10.4236/ape.2012.22012
Affective and health-related outcome expectancies for physical activity in older adults
Gellert, P, Ziegelmann, J and Schwarzer, Ralf. (2012). Affective and health-related outcome expectancies for physical activity in older adults. Psychology and Health. 27(7), pp. 816 - 828. https://doi.org/10.1080/08870446.2011.607236
Long-term adherence to a physical activity intervention : The role of telephone-assisted vs. self-administered coping plans and strategy use
Evers, A, Klusmann, V, Ziegelmann, J, Schwarzer, Ralf and Heuser, I. (2012). Long-term adherence to a physical activity intervention : The role of telephone-assisted vs. self-administered coping plans and strategy use. Psychology and Health. 27(7), pp. 784 - 797. https://doi.org/10.1080/08870446.2011.582114
Facilitating sunscreen use in women by a theory-based online intervention : A randomized controlled trial
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). Facilitating sunscreen use in women by a theory-based online intervention : A randomized controlled trial. Health Psychology, Journal of. 17(2), pp. 207 - 216. https://doi.org/10.1177/1359105311414955
Enhancing planning strategies for sunscreen use at different stages of change
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). Enhancing planning strategies for sunscreen use at different stages of change. Health Education Research. 27(5), pp. 857 - 867. https://doi.org/10.1093/her/cys091
Planning and self-efficacy can increase fruit and vegetable consumption : A randomized controlled trial
Kreausukon, Pimchanok, Gellert, P, Lippke, S and Schwarzer, Ralf. (2012). Planning and self-efficacy can increase fruit and vegetable consumption : A randomized controlled trial. Journal of Behavioral Medicine. 35(4), pp. 443 - 451. https://doi.org/10.1007/s10865-011-9373-1
Online intervention engagement predicts smoking cessation
Schwarzer, Ralf and Satow, L. (2012). Online intervention engagement predicts smoking cessation. Preventive Medicine. 55(3), pp. 233 - 236. https://doi.org/10.1016/j.ypmed.2012.07.006
Facilitating sunscreen use in women by a theory-based online intervention : A randomized controlled trial
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). Facilitating sunscreen use in women by a theory-based online intervention : A randomized controlled trial. Journal of Health Psychology. 17(2), pp. 207 - 216. https://doi.org/10.1177/1359105311414955
A mediator model of sunscreen use : A longitudinal analysis of social-cognitive predictors and mediators
Craciun, C, Schuz, N, Lippke, S and Schwarzer, Ralf. (2012). A mediator model of sunscreen use : A longitudinal analysis of social-cognitive predictors and mediators. International Journal of Behavioral Medicine. 19(1), pp. 65 - 72. https://doi.org/10.1007/s12529-011-9153-x
Synergistic effects of planning and self-efficacy on physical activity
Koring, M, Richert, J, Lippke, S, Parschau, L, Reuter, T and Schwarzer, Ralf. (2012). Synergistic effects of planning and self-efficacy on physical activity. Health Education & Behavior. 39(2), pp. 152 - 158. https://doi.org/10.1177/1090198111417621
Long-term adherence to a physical activity intervention : The role of telephone-assisted vs. self-administered coping plans and strategy use
Evers, A, Klusmann, V, Ziegelmann, J, Schwarzer, Ralf and Heuser, I. (2012). Long-term adherence to a physical activity intervention : The role of telephone-assisted vs. self-administered coping plans and strategy use. Psychology and Health. 27(7), pp. 784 - 797. https://doi.org/10.1080/08870446.2011.582114
Views on aging and emotional benefits of physical activity : Effects of an exercise intervention in older women
Klusmann, V, Evers, A, Schwarzer, Ralf and Heuser, I. (2012). Views on aging and emotional benefits of physical activity : Effects of an exercise intervention in older women. Psychology of Sport and Exercise. 13(2), pp. 236 - 242. https://doi.org/10.1016/j.psychsport.2011.11.001
Synergistic effects of planning and self-efficacy on physical activity
Koring, M, Richert, J, Lippke, S, Parschau, L, Reuter, T and Schwarzer, Ralf. (2012). Synergistic effects of planning and self-efficacy on physical activity. Health Education & Behavior. 39(2), pp. 152 - 158. https://doi.org/10.1177/1090198111417621
Multiple plans and memory performance : Results of a randomized controlled trial targeting fruit and vegetable intake
Wiedemann, A, Lippke, S and Schwarzer, Ralf. (2012). Multiple plans and memory performance : Results of a randomized controlled trial targeting fruit and vegetable intake. Journal of Behavioral Medicine. 35(4), pp. 387 - 392. https://doi.org/10.1007/s10865-011-9364-2
Health behavior change
Schwarzer, Ralf. (2011). Health behavior change. In In H. S. Friedman (Ed.). pp. 591 - 611 Oxford University Press. https://doi.org/10.1093/oxfordhb/9780195342819.013.0024
What motivates employees to take part in the seasonal influenza vaccination? :Analysis of willingness to be vaccinated at work
Ernsting, A, Schwarzer, Ralf, Lippke, S and Schneider, M. (2011). What motivates employees to take part in the seasonal influenza vaccination? :Analysis of willingness to be vaccinated at work. Arbeitsmedizin Sozialmedizin Umweltmedizin. 46(5), pp. 320 - 325.
intervention effects of exercise self-regulation on physical exercise and eating fruits and vegetables :A longitudinal study in orthopedic and cardiac rehabilitation
Fleig, L, Lippke, S, Pomp, S and Schwarzer, Ralf. (2011). intervention effects of exercise self-regulation on physical exercise and eating fruits and vegetables :A longitudinal study in orthopedic and cardiac rehabilitation. Preventive Medicine. 53(3), pp. 182 - 187. https://doi.org/10.1016/j.ypmed.2011.06.019
How planning facilitates behaviour change :Additive and interactive effects of a randomized controlled trial
Wiedemann, A, Lippke, S, Reuter, T, Ziegelmann, J and Schwarzer, Ralf. (2011). How planning facilitates behaviour change :Additive and interactive effects of a randomized controlled trial. European Journal of Social Psychology. 41(1), pp. 42 - 51. https://doi.org/10.1002/ejsp.724
Improving cognition by adherence to physical or mental exercise :A moderated mediation analysis
Evers, A, Klusmann, V, Schwarzer, Ralf and Heuser, I. (2011). Improving cognition by adherence to physical or mental exercise :A moderated mediation analysis. Aging and Mental Health. 15(4), pp. 446 - 455. https://doi.org/10.1080/13607863.2010.543657
A brief questionnaire on metacognition :Psychometric properties
Klusmann, V, Eversa, A, Schwarzer, Ralf and Heuser, I. (2011). A brief questionnaire on metacognition :Psychometric properties. Aging and Mental Health. 15(8), pp. 1052 - 1062. https://doi.org/10.1080/13607863.2011.583624
Activity experiences shape perceived fitness trajectories :Results from a 6-month randomized controlled trial in older women
Klusmann, V, Evers, A, Schwarzer, Ralf and Heuser, I. (2011). Activity experiences shape perceived fitness trajectories :Results from a 6-month randomized controlled trial in older women. Neuropsychology, Development and Cognition. Section B: Aging, Neuropsychology and Cognition: a journal on normal and dysfunctional development. 18(3), pp. 328 - 339. https://doi.org/10.1080/13825585.2011.553272
Self-efficacy as a moderator of the planning-behaviour relationship in interventions designed to promote physical activity
Luszczynska, A, Schwarzer, Ralf, Lippke, S and Mazurkiewicz, M. (2011). Self-efficacy as a moderator of the planning-behaviour relationship in interventions designed to promote physical activity. Psychology and Health. 26(2), pp. 151 - 166. https://doi.org/10.1080/08870446.2011.531571
Forshung zur Selbstwirksamkeit bei Lehrerinnen und Lehrern
Schwarzer, Ralf and Warner, Lisa. (2011). Forshung zur Selbstwirksamkeit bei Lehrerinnen und Lehrern. In In E. Terhart, H. Bennewitz and M. Rothland (Ed.). Handbuch der Forschung zum Lehrerberuf pp. 496 - 510 Waxmann.
Exercise maintenance after rehabilitation :How experience can make a difference
Fleig, L, Lippke, S, Pomp, S and Schwarzer, Ralf. (2011). Exercise maintenance after rehabilitation :How experience can make a difference. Psychology of Sport and Exercise. 12(3), pp. 293 - 299. https://doi.org/10.1016/j.psychsport.2011.01.003
Mechanisms of Health Behavior Change in Persons With Chronic illness or Disability :The Health Action Process Approach (HAPA)
Schwarzer, Ralf, Lippke, S and Luszczynska, A. (2011). Mechanisms of Health Behavior Change in Persons With Chronic illness or Disability :The Health Action Process Approach (HAPA). Rehabilitation Psychology. 56(3), pp. 161 - 170. https://doi.org/10.1037/a0024509
Medication beliefs predict medication adherence in older adults with multiple illnesses
Schuz, B, Marx, C, Wurm, S, Ziegelmann, J, Schwarzer, Ralf and Tesch-Romer, C. (2011). Medication beliefs predict medication adherence in older adults with multiple illnesses. Journal of Psychosomatic Research. 70(2), pp. 179 - 187. https://doi.org/10.1016/j.jpsychores.2010.07.014
Changes in intentions, planning, and self-efficacy predict changes in behaviors : An application of latent true change modeling
Reuter, T, Ziegelmann, J, Wiedemann, A, Geiser, C, Lippke, S, Schuz, B and Schwarzer, Ralf. (2010). Changes in intentions, planning, and self-efficacy predict changes in behaviors : An application of latent true change modeling. Journal of Health Psychology. 15(6), pp. 935 - 947. https://doi.org/10.1177/1359105309360071
inflammatory biomarkers in 70 depressed inpatients with and without the metabolic syndrome
Zeugmann, S, Quante, A, Heuser, I, Schwarzer, Ralf and Anghelescu, I. (2010). inflammatory biomarkers in 70 depressed inpatients with and without the metabolic syndrome. Journal of Clinical Psychiatry. 71(8), pp. 1007 - 1016. https://doi.org/10.4088/JCP.08m04767blu
Risk perception moderates how intentions are translated into sunscreen use
Craciun, C., Schuz, N., Lippke, S. and Schwarzer, Ralf. (2010). Risk perception moderates how intentions are translated into sunscreen use. Journal of Behavioral Medicine. 33(5), pp. 392 - 398. https://doi.org/10.1007/s10865-010-9269-5
Comparison of individual criteria and externally imposed criteria for stage allocation : Findings from an internet study addressing physical activity
Richert, J, Lippke, S and Schwarzer, Ralf. (2010). Comparison of individual criteria and externally imposed criteria for stage allocation : Findings from an internet study addressing physical activity. Measurement in Physical Education and Exercise Science. 14(4), pp. 225 - 240. https://doi.org/10.1080/1091367X.2010.520242
Comparison of individual criteria and externally imposed criteria for stage allocation : Findings from an internet study addressing physical activity
Richert, J, Lippke, S and Schwarzer, Ralf. (2010). Comparison of individual criteria and externally imposed criteria for stage allocation : Findings from an internet study addressing physical activity. Measurement in Physical Education and Exercise Science. 14(4), pp. 225 - 240. https://doi.org/10.1080/1091367X.2010.520242
Intentions, planning, and self-efficacy predict physical activity in Chinese and Polish adolescents : Two moderated mediation analyses
Luszczynska, A, Cao, D, Mallach, N, Pietron, K, Mazurkiewicz, M and Schwarzer, Ralf. (2010). Intentions, planning, and self-efficacy predict physical activity in Chinese and Polish adolescents : Two moderated mediation analyses. International Journal of Clinical and Health Psychology. 10(2), pp. 265 - 278.
Emotional and uncontrolled eating styles and chocolate chip cookie consumption. A controlled trial of the effects of positive mood enhancement
Turner, Sally Ann, Luszczynska, A, Warner, Lisa and Schwarzer, Ralf. (2010). Emotional and uncontrolled eating styles and chocolate chip cookie consumption. A controlled trial of the effects of positive mood enhancement. Appetite. 54(1), pp. 143 - 149. https://doi.org/10.1016/j.appet.2009.09.020
Stage-matched minimal interventions to enhance physical activity in Chinese adolescents
Schwarzer, Ralf, Cao, D and Lippke, S. (2010). Stage-matched minimal interventions to enhance physical activity in Chinese adolescents. Journal of Adolescent Health. 47(6), pp. 533 - 539. https://doi.org/10.1016/j.jadohealth.2010.03.015
Translating intentions into nutrition behaviors via planning requires self-efficacy : Evidence from Thailand and Germany
Schwarzer, Ralf, Richert, J, Kreausukon, P, Remme, L, Wiedemann, A and Reuter, T. (2010). Translating intentions into nutrition behaviors via planning requires self-efficacy : Evidence from Thailand and Germany. International Journal of Psychology. 45(4), pp. 260 - 268. https://doi.org/10.1080/00207591003674479
Intentions, planning, and self-efficacy predict physical activity in Chinese and Polish adolescents : Two moderated mediation analyses
Luszczynska, A, Cao, D, Mallach, N, Pietron, K, Mazurkiewicz, M and Schwarzer, Ralf. (2010). Intentions, planning, and self-efficacy predict physical activity in Chinese and Polish adolescents : Two moderated mediation analyses. International Journal of Clinical and Health Psychology. 10(2), pp. 265 - 278.
Complex mental and physical activity in older women and cognitive performance : A 6-month randomized controlled trial
Klusmann, V, Evers, A, Schwarzer, Ralf, Schlattmann, P, Reischies, F, Heuser, I and Dimeo, Fernando. (2010). Complex mental and physical activity in older women and cognitive performance : A 6-month randomized controlled trial. Journals of Gerontology: Series A Biological Sciences and Medical Sciences. 65A (6), pp. 680 - 688. https://doi.org/10.1093/gerona/glq053
Synergistic effects of intention and depression on action control : Longitudinal predictors of exercise after rehabilitation
Pomp, S, Lippke, S, Fleig, L and Schwarzer, Ralf. (2010). Synergistic effects of intention and depression on action control : Longitudinal predictors of exercise after rehabilitation. Mental Health and Physical Activity. 3(2), pp. 78 - 84. https://doi.org/10.1016/j.mhpa.2010.09.005
Differential effects of planning and self-efficacy on fruit and vegetable consumption
Richert, J, Reuter, T, Wiedemann, A, Lippke, S, Ziegelmann, J and Schwarzer, Ralf. (2010). Differential effects of planning and self-efficacy on fruit and vegetable consumption. Appetite. 54(3), pp. 611 - 614. https://doi.org/10.1016/j.appet.2010.03.006
Validity of a Stage Algorithm for Physical Activity in Participants Recruited From Orthopedic and Cardiac Rehabilitation Clinics
Lippke, S, Fleig, L, Pomp, S and Schwarzer, Ralf. (2010). Validity of a Stage Algorithm for Physical Activity in Participants Recruited From Orthopedic and Cardiac Rehabilitation Clinics. Rehabilitation Psychology. 55(4), pp. 398 - 408. https://doi.org/10.1037/a0021563
Complex mental and physical activity in older women and cognitive performance : A 6-month randomized controlled trial
Klusmann, V, Evers, A, Schwarzer, Ralf, Schlattmann, P, Reischies, F, Heuser, I and Dimeo, Fernando. (2010). Complex mental and physical activity in older women and cognitive performance : A 6-month randomized controlled trial. Journals of Gerontology: Series A Biological Sciences and Medical Sciences. 65A (6), pp. 680 - 688. https://doi.org/10.1093/gerona/glq053
Synergistic effects of intention and depression on action control : Longitudinal predictors of exercise after rehabilitation
Pomp, S, Lippke, S, Fleig, L and Schwarzer, Ralf. (2010). Synergistic effects of intention and depression on action control : Longitudinal predictors of exercise after rehabilitation. Mental Health and Physical Activity. 3(2), pp. 78 - 84. https://doi.org/10.1016/j.mhpa.2010.09.005
Translating intentions into nutrition behaviors via planning requires self-efficacy : Evidence from Thailand and Germany
Schwarzer, Ralf, Richert, J, Kreausukon, P, Remme, L, Wiedemann, A and Reuter, T. (2010). Translating intentions into nutrition behaviors via planning requires self-efficacy : Evidence from Thailand and Germany. International Journal of Psychology. 45(4), pp. 260 - 268. https://doi.org/10.1080/00207591003674479
Validity of a Stage Algorithm for Physical Activity in Participants Recruited From Orthopedic and Cardiac Rehabilitation Clinics
Lippke, S, Fleig, L, Pomp, S and Schwarzer, Ralf. (2010). Validity of a Stage Algorithm for Physical Activity in Participants Recruited From Orthopedic and Cardiac Rehabilitation Clinics. Rehabilitation Psychology. 55(4), pp. 398 - 408. https://doi.org/10.1037/a0021563
Stage-matched minimal interventions to enhance physical activity in Chinese adolescents
Schwarzer, Ralf, Cao, D and Lippke, S. (2010). Stage-matched minimal interventions to enhance physical activity in Chinese adolescents. Journal of Adolescent Health. 47(6), pp. 533 - 539. https://doi.org/10.1016/j.jadohealth.2010.03.015
Changes in intentions, planning, and self-efficacy predict changes in behaviors : An application of latent true change modeling
Reuter, T, Ziegelmann, J, Wiedemann, A, Geiser, C, Lippke, S, Schuz, B and Schwarzer, Ralf. (2010). Changes in intentions, planning, and self-efficacy predict changes in behaviors : An application of latent true change modeling. Health Psychology, Journal of. 15(6), pp. 935 - 947. https://doi.org/10.1177/1359105309360071
inflammatory biomarkers in 70 depressed inpatients with and without the metabolic syndrome
Zeugmann, S, Quante, A, Heuser, I, Schwarzer, Ralf and Anghelescu, I. (2010). inflammatory biomarkers in 70 depressed inpatients with and without the metabolic syndrome. Journal of Clinical Psychiatry. 71(8), pp. 1007 - 1016. https://doi.org/10.4088/JCP.08m04767blu
Testing stage-specific effects of a stage-matched intervention : A randomized controlled trial targeting physical exercise and its predictors
Lippke, S, Schwarzer, Ralf, Ziegelmann, J, Scholz, U and Schuz, B. (2010). Testing stage-specific effects of a stage-matched intervention : A randomized controlled trial targeting physical exercise and its predictors. Health Education & Behavior. 37(4), pp. 533 - 546. https://doi.org/10.1177/1090198109359386
Testing stage-specific effects of a stage-matched intervention : A randomized controlled trial targeting physical exercise and its predictors
Lippke, S, Schwarzer, Ralf, Ziegelmann, J, Scholz, U and Schuz, B. (2010). Testing stage-specific effects of a stage-matched intervention : A randomized controlled trial targeting physical exercise and its predictors. Health Education & Behavior. 37(4), pp. 533 - 546. https://doi.org/10.1177/1090198109359386
Transmission of depressive symptoms - a study with Coules undergoing assisted-reproduction treatment
Knoll, Nina, Schwarzer, Ralf, Pfuller, B. and Kienle, R.. (2009). Transmission of depressive symptoms - a study with Coules undergoing assisted-reproduction treatment. European Psychologist. 14(1), pp. 7 - 17. https://doi.org/10.1027/1016-9040.14.1.7
Prediction of stage transitions in fruit and vegetable intake
Wiedemann, Amelie U., Lippke, Sonia, Reuter, Tabea, Schuz, Benjamin, Ziegelmann, Jochen P. and Schwarzer, Karl Ralf. (2009). Prediction of stage transitions in fruit and vegetable intake. Health Education Research. 24(4), pp. 596 - 607. https://doi.org/10.1093/her/cyn061
Verhalten und gesundheit
Reuter, T. and Schwarzer, Karl Ralf. (2009). Verhalten und gesundheit. In In J. Bengel and M. Jerusalem (Ed.). Handbuch der Gesundheits-psychologie und Medizinischen Psychologie pp. 34 - 45 Hogrefe Verlag GmbH & Co. KG.
Gesundheitspsychologie
Schwarzer, Ralf. (2009). Gesundheitspsychologie. In In Krampen, Günter (Ed.). Psychologie - Experten als Zeitzeugen pp. 240-249 Hogrefe Verlag GmbH & Co. KG.
Long-term relations between intentions, planning, and exercise: A 3-year longitudinal study after orthopedic rehabilitation
Reuter, Tabea, Ziegelmann, Jochen P., Lippke, Sonia and Schwarzer, Karl Ralf. (2009). Long-term relations between intentions, planning, and exercise: A 3-year longitudinal study after orthopedic rehabilitation. Rehabilitation Psychology. 54(4), pp. 363 - 371. https://doi.org/10.1037/a0017830
Predicting transitions from preintentional, intentional and actional stages of change
Schuz, Benjamin, Sniehotta, Falko F., Mallach, Natalie, Wiedemann, Amelie U. and Schwarzer, Karl Ralf. (2009). Predicting transitions from preintentional, intentional and actional stages of change. Health Education Research. 24(1), pp. 64 - 75. https://doi.org/10.1093/her/cym092
Health psychology at the international congress of psychology in berlin, Germany, 2008
Schwarzer, Ralf and Richert, J.. (2009). Health psychology at the international congress of psychology in berlin, Germany, 2008. Zeitschrift fur Gesundheitspsychologie. 17(1), pp. 40 - 42. https://doi.org/10.1026/0943-8149.17.1.40
Transmission of depressive symptoms: A study with couples undergoing assisted-reporduction treatment
Knoll, Nina, Schwarzer, Karl Ralf, Pfuller, Bettina and Kienle, Rolf. (2009). Transmission of depressive symptoms: A study with couples undergoing assisted-reporduction treatment. European Psychologist. 14(1), pp. 7 - 17. https://doi.org/10.1027/1016-9040.14.1.7
Selbstwirksamkeit bei Lehrkraften
Warner, Lisa M. and Schwarzer, Karl Ralf. (2009). Selbstwirksamkeit bei Lehrkraften. In Lehrprofessionalitat pp. 629 - 640 Beltz Verlag.
Effects of stress and psychosocial resources on anxiety, depression, and somatisation in Costa Rican workers
Gutierrez-Dona, Benicio, Luszczynska, Aleksandra and Schwarzer, Karl Ralf. (2009). Effects of stress and psychosocial resources on anxiety, depression, and somatisation in Costa Rican workers. In In K. A Moore and P. Buchwald (Ed.). Stress and anxiety: Application to adolescence, job stress and personality pp. 89 - 101 Logos Verlag Berlin.
Self-efficacy and planning predict dietary behaviors in Costa Rican and South Korean women: Two moderated mediation analyses
Gutierrez-Dona, Benicio, Lippke, Sonia, Renner, Britta, Kwon, Sunkyo and Schwarzer, Karl Ralf. (2009). Self-efficacy and planning predict dietary behaviors in Costa Rican and South Korean women: Two moderated mediation analyses. Applied Psychology: Health and Well-Being. 1(1), pp. 91 - 104. https://doi.org/10.1111/j.1758-0854.2009.01004.x
Validity of stage assessment in the adoption and maintenance of physical activity and fruit and vegetable consumption
Lippke, Sonia, Ziegelmann, Jochen P., Schwarzer, Karl Ralf and Velicer, Wayne F.. (2009). Validity of stage assessment in the adoption and maintenance of physical activity and fruit and vegetable consumption. Health Psychology. 28(2), pp. 183 - 193. https://doi.org/10.1037/a0012983
Self-efficacy moderates the mediation of intentions into behavior via plans
Lippke, Sonia, Wiedemann, Amelie U., Ziegelmann, Jochen P., Reuter, Tabea and Schwarzer, Karl Ralf. (2009). Self-efficacy moderates the mediation of intentions into behavior via plans. American Journal of Health Behavior. 33(5), pp. 521 - 529. https://doi.org/10.5993/AJHB.33.5.5
Selbstwirksamkeitserwartung
Hohmann, Cynthia and Schwarzer, Karl Ralf. (2009). Selbstwirksamkeitserwartung. In In J. Bengel and M. Jerusalem (Ed.). Handbuch der Gesundheits-psychologie und Medizinischen Psychologie pp. 61 - 67 Hogrefe Verlag GmbH & Co. KG.
Planning and self-efficacy of participants in an online intervention for cessation motivated smokers [Forskningsetik i forskning som involverar barn: Etik som riskhantering och etik som Forskningspraktik]
Satow, Lars, Lippke, Sonia and Schwarzer, Karl Ralf. (2009). Planning and self-efficacy of participants in an online intervention for cessation motivated smokers [Forskningsetik i forskning som involverar barn: Etik som riskhantering och etik som Forskningspraktik]. Zeitschrift fur Gesundheitspsychologie. 17(3), pp. 114 - 120. https://doi.org/10.1026/0943-8149.17.3.114
Disentangling the relation between intentions, planning, and behaviour: A moderated mediation analysis
Wiedemann, A. U., Schuz, B., Sniehotta, F., Scholz, U. and Schwarzer, Karl Ralf. (2009). Disentangling the relation between intentions, planning, and behaviour: A moderated mediation analysis. Psychology and Health. 24(1), pp. 67 - 79. https://doi.org/10.1080/08870440801958214
Social-cognitive predictors of dietary behaviors in South Korean men and women
Renner, Britta, Kwon, Sunkyo, Yang, Byung-Hwan, Paik, Ki-Chung, Kim, Seok Hyeon, Roh, Sungwon, Song, Jaechul and Schwarzer, Karl Ralf. (2008). Social-cognitive predictors of dietary behaviors in South Korean men and women. International Journal of Behavioral Medicine. 15(1), pp. 4 - 13. https://doi.org/10.1007/BF03003068
Modeling health behavior change: How to predict and modify the adoption and maintenance of health behaviors
Schwarzer, Karl Ralf. (2008). Modeling health behavior change: How to predict and modify the adoption and maintenance of health behaviors. Applied Psychology - An International Review. 57(1), pp. 1 - 29. https://doi.org/10.1111/j.1464-0597.2007.00325.x
Health action process approach: A research agenda at the Freie Universitat Berlin to examine and promote health behavior change
Schwarzer, Karl Ralf, Lippke, Sonia and Ziegelmann, Jochen P.. (2008). Health action process approach: A research agenda at the Freie Universitat Berlin to examine and promote health behavior change. Zeitschrift fur Gesundheitspsychologie. 16, pp. 157 - 160. https://doi.org/10.1026/0943-8149.16.3.157
Creative organizational climate of schools, general self-efficacy, creativity self-efficacy, and cultural efficacy of teachers
Yi, Xinfa, Cai, Shushan, Scheithauer, Herbert, Schwarzer, Karl Ralf, Luo, Liang, Huang, Silin and Chen, Guang. (2008). Creative organizational climate of schools, general self-efficacy, creativity self-efficacy, and cultural efficacy of teachers. Hong Kong Educational Research Journal. 23(2), pp. 227 - 251.
How to overcome health-compromising behaviors: The health action process approach
Schwarzer, Ralf and Luszczynska, A.. (2008). How to overcome health-compromising behaviors: The health action process approach. European Psychologist. 13(2), pp. 141 - 151. https://doi.org/10.1027/1016-9040.13.2.141
Models of health behaviour change: Intention as mediator or stage as moderator?
Schwarzer, Karl Ralf. (2008). Models of health behaviour change: Intention as mediator or stage as moderator? Psychology and Health. 23(3), pp. 259 - 263. https://doi.org/10.1080/08870440801889476
Some burning issues in research on health behavior change: Response
Schwarzer, Karl Ralf. (2008). Some burning issues in research on health behavior change: Response. Applied Psychology. 57(1), pp. 84 - 93. https://doi.org/10.1111/j.1464-0597.2007.00324.x
Beyond behavioural intentions: Planning mediates between intentions and physical activity
Scholz, Urte, Schuz, Benjamin, Ziegelmann, Jochen P., Lippke, Sonia and Schwarzer, Karl Ralf. (2008). Beyond behavioural intentions: Planning mediates between intentions and physical activity. British Journal of Health Psychology. 13(3), pp. 479 - 494. https://doi.org/10.1348/135910707X216062
Perceived teacher self-efficacy as a predictor of job stress and burnout: Mediation analyses
Schwarzer, Karl Ralf and Hallum, Suhair. (2008). Perceived teacher self-efficacy as a predictor of job stress and burnout: Mediation analyses. Applied Psychology - An International Review. 57(S1), pp. 152 - 171. https://doi.org/10.1111/j.1464-0597.2008.00359.x
Social-cognitive predictors of physical exercise adherence: Three longitudinal studies in rehabilitation
Schwarzer, Karl Ralf, Luszczynska, Aleksandra, Ziegelmann, Jochen P., Scholz, Urte and Lippke, Sonia. (2008). Social-cognitive predictors of physical exercise adherence: Three longitudinal studies in rehabilitation. Health Psychology. 27(1 SUPPL.), pp. 54 - 63. https://doi.org/10.1037/0278-6133.27.1(Suppl.).S54
Reactive, anticipatory, preventive, and proactive coping: A theoretical distinction
Schwarzer, Karl Ralf and Luszczynska, A.. (2008). Reactive, anticipatory, preventive, and proactive coping: A theoretical distinction. The Prevention Researcher. 15(4), pp. 22 - 24.