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Ralf Schwarzer

@schwarzer1

Professor of Health Psychology

 Berlin, Germany
my.psyc.de
Joined May 2010
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Effects of an intervention targeting social media app use on well‐being outcomes: A randomized controlled trial - Brockmeier - 2025 - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Effects of an intervention targeting social media app use on well‐being outcomes: A randomized...

Effects of an intervention targeting social media app use on well‐being outcomes: A randomized...

Background Interventions targeting social media use show mixed results in improving well-being outcomes, particularly for persons with problematic forms of smartphone use. This study assesses the...

iaap-journals.onlinelibrary.wiley.com
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Habit substitution toward more active commuting - Di Maio - 2025 - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Habit substitution toward more active commuting

Habit substitution toward more active commuting

Commuting to work is often a highly habitual behavior that people perform automatically over a long period of time. Substituting an inactive with a more active commuting habit might thus support...

iaap-journals.onlinelibrary.wiley.com
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The temporal trajectories of habit decay in daily life: An intensive longitudinal study on four health‐risk behaviors - Edgren - 2025 - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
The temporal trajectories of habit decay in daily life: An intensive longitudinal study on four...

The temporal trajectories of habit decay in daily life: An intensive longitudinal study on four...

Habits are cue-behavior associations learned through repetition that are assumed to be relatively stable. Thereby, unhealthy habits can pose a health risk due to facilitating relapse. In the absence...

iaap-journals.onlinelibrary.wiley.com
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HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity - Baretta - 2025 - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity

HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity

Habit is a key psychological determinant for physical activity behavior change and maintenance. This study aims to deepen the understanding of habit formation in physical activity and identify...

iaap-journals.onlinelibrary.wiley.com
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Enhancing health assessments with large language models: A methodological approach - Wang - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Enhancing health assessments with large language models: A methodological approach

Enhancing health assessments with large language models: A methodological approach

Health assessments have long been a significant research topic within the field of health psychology. By analyzing the results of subject scales, these assessments effectively evaluate physical and...

iaap-journals.onlinelibrary.wiley.com
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HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity - Baretta - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity

HabitWalk: A micro‐randomized trial to understand and promote habit formation in physical activity

Habit is a key psychological determinant for physical activity behavior change and maintenance. This study aims to deepen the understanding of habit formation in physical activity and identify...

iaap-journals.onlinelibrary.wiley.com
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79
A full‐factorial test of motivational and volitional intervention strategies for promoting exercise habit formation and exercise maintenance iaap-journals.onlinelibrary.…
A full‐factorial test of motivational and volitional intervention strategies for promoting exercise...

A full‐factorial test of motivational and volitional intervention strategies for promoting exercise...

Interventions often fail to achieve long-term behavioral maintenance. Utilizing motivational and volitional strategies to promote behavioral maintenance factors may improve this. Using a full-facto...

iaap-journals.onlinelibrary.wiley.com
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Can—and should—automaticity be self‐reported using a single item? A secondary analysis of 16 datasets - Gardner - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Can—and should—automaticity be self‐reported using a single item? A secondary analysis of 16...

Can—and should—automaticity be self‐reported using a single item? A secondary analysis of 16...

Understanding the influence of habit on health behaviour, or the formation or disruption of health habits over time, requires reliable and valid measures of automaticity. The most used measure, the...

iaap-journals.onlinelibrary.wiley.com
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A single‐session growth mindset intervention among Chinese junior secondary school students - Yu - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
A single‐session growth mindset intervention among Chinese junior secondary school students

A single‐session growth mindset intervention among Chinese junior secondary school students

Brief, low-cost growth mindset interventions improving academic-related outcomes can be valuable. However, less is known regarding their effectiveness on learning motivation, behaviors, and academic...

iaap-journals.onlinelibrary.wiley.com
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Loneliness, sleep and daily stress: Evidence of direct and indirect effects - O'Connor - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Loneliness, sleep and daily stress: Evidence of direct and indirect effects

Loneliness, sleep and daily stress: Evidence of direct and indirect effects

This study investigated: i) the effects of loneliness on self-reported sleep outcomes and daily stress/hassles, ii) whether the effects of loneliness on sleep outcomes were mediated through prior-d...

iaap-journals.onlinelibrary.wiley.com
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Predicting alcohol consumption: Application of an integrated social cognition model of intentions, habits, and cue consistency - Simpson‐Rojas - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Predicting alcohol consumption: Application of an integrated social cognition model of intentions,...

Predicting alcohol consumption: Application of an integrated social cognition model of intentions,...

Drinking alcohol in excess is associated with deleterious health outcomes, highlighting the need for research to identify potentially modifiable correlates of excessive alcohol consumption to target...

iaap-journals.onlinelibrary.wiley.com
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Developing a machine learning‐based instrument for subjective well‐being assessment on Weibo and its psychological significance: An evaluative and interpretive research - Han - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Developing a machine learning‐based instrument for subjective well‐being assessment on Weibo and...

Developing a machine learning‐based instrument for subjective well‐being assessment on Weibo and...

Demystifying machine learning (ML) approaches through the synergy of psychology and artificial intelligence can achieve a balance between predictive and explanatory power in model development while...

iaap-journals.onlinelibrary.wiley.com
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Influence of a robotic companion on women's food choices: Evidence from an imaginary task - Guo - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Influence of a robotic companion on women's food choices: Evidence from an imaginary task

Influence of a robotic companion on women's food choices: Evidence from an imaginary task

Previous research has demonstrated the influence of commensal dining between humans on food choices, whereas we conducted two studies to examine how the presence of a robot might influence people's...

iaap-journals.onlinelibrary.wiley.com
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Using machine learning to explore the predictors of life satisfaction trajectories in older adults - Chen - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Using machine learning to explore the predictors of life satisfaction trajectories in older adults

Using machine learning to explore the predictors of life satisfaction trajectories in older adults

Life satisfaction is vital for older adults' well-being, impacting various life aspects. It is dynamic, necessitating nuanced approaches to capture its trajectories accurately. This study aimed to...

iaap-journals.onlinelibrary.wiley.com
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Effects of experimental, network‐based social circle norm feedback on studying behavior and alcohol consumption - Giese - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Effects of experimental, network‐based social circle norm feedback on studying behavior and alcohol...

Effects of experimental, network‐based social circle norm feedback on studying behavior and alcohol...

Misrepresentation of peer behavior has often been observed in college students and may lead to over-expression of alcohol consumption and under-expression of studying. While social norm feedback...

iaap-journals.onlinelibrary.wiley.com
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Social support and family resilience among Chinese people receiving maintenance hemodialysis: A polynomial regression and response surface analysis explaining psychological resilience - Xu - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Social support and family resilience among Chinese people receiving maintenance hemodialysis: A...

Social support and family resilience among Chinese people receiving maintenance hemodialysis: A...

Psychological resilience plays an important role in overcoming emotional distress among people receiving maintenance hemodialysis (MHD). This study aimed to investigate how social support and family...

iaap-journals.onlinelibrary.wiley.com
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The efficacy of online physical activity interventions with added mobile elements within adults aged 50 years and over: Randomized controlled trial - Collombon - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
The efficacy of online physical activity interventions with added mobile elements within adults...

The efficacy of online physical activity interventions with added mobile elements within adults...

Electronic health (eHealth) and mobile health (mHealth) could stimulate physical activity (PA) in a time-efficient and cost-effective way. This randomized controlled trial aims to investigate...

iaap-journals.onlinelibrary.wiley.com
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Effects of physical activity planning interventions on reducing sedentary behavior in parent–child dyads: A randomized controlled trial - Szczuka - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Effects of physical activity planning interventions on reducing sedentary behavior in parent–child...

Effects of physical activity planning interventions on reducing sedentary behavior in parent–child...

Effects of parent–child dyad interventions on behavior remain unclear. This randomized controlled trial investigated if, compared with a control condition, three types of physical activity (PA)...

iaap-journals.onlinelibrary.wiley.com
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Using machine learning to unveil relevant predictors of adherence to recommended health‐protective behaviors during the COVID‐19 pandemic in Denmark - Lilleholt - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
Using machine learning to unveil relevant predictors of adherence to recommended health‐protective...

Using machine learning to unveil relevant predictors of adherence to recommended health‐protective...

What were relevant predictors of individuals' proclivity to adhere to recommended health-protective behaviors during the COVID-19 pandemic in Denmark? Applying machine learning (namely, lasso...

iaap-journals.onlinelibrary.wiley.com
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The dynamic relationships between well‐being, behavioral restrictions, and health behaviors during the COVID‐19 pandemic: A large‐scale intensive longitudinal network study - Ebling - Applied Psychology: Health and Well-Being - Wiley Online Library iaap-journals.onlinelibrary.…
The dynamic relationships between well‐being, behavioral restrictions, and health behaviors during...

The dynamic relationships between well‐being, behavioral restrictions, and health behaviors during...

The behavioral restrictions disrupting daily life during the COVID-19 pandemic have profoundly impacted well-being, and health behaviors have been advocated to prevent decline. To understand how...

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