Kai T. Horstmann

ORCID: 0000-0003-3224-1880
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About
Contact & Profiles
Research Areas
  • Mental Health Research Topics
  • Personality Traits and Psychology
  • Behavioral Health and Interventions
  • Personality Disorders and Psychopathology
  • COVID-19 and Mental Health
  • Psychological Well-being and Life Satisfaction
  • Advanced Statistical Modeling Techniques
  • Cognitive Abilities and Testing
  • Health disparities and outcomes
  • Digital Mental Health Interventions
  • Social and Intergroup Psychology
  • Identity, Memory, and Therapy
  • Religion, Theology, and Education
  • Psychometric Methodologies and Testing
  • Job Satisfaction and Organizational Behavior
  • Research Data Management Practices
  • Mindfulness and Compassion Interventions
  • Communication in Education and Healthcare
  • Education Methods and Technologies
  • Workplace Health and Well-being
  • Media Influence and Health
  • Resilience and Mental Health
  • Psychology of Moral and Emotional Judgment
  • Scientific Computing and Data Management
  • COVID-19 Digital Contact Tracing

University of Siegen
2021-2025

Humboldt-Universität zu Berlin
2015-2024

Folkwang University of the Arts
2023

University of Tübingen
2022

Institute of Education Sciences
2022

Humboldt State University
2022

Czech Academy of Sciences, Institute of Psychology
2018-2021

Hannah Moshontz Lorne Campbell Charles R. Ebersole Hans IJzerman Heather L. Urry and 92 more Patrick S. Forscher Jon Grahe Randy J. McCarthy Erica D. Musser Jan Antfolk Christopher M. Castille Thomas Rhys Evans Susann Fiedler Jessica Kay Flake Diego A. Forero Steve M. J. Janssen Justin Robert Keene John Protzko Balázs Aczél Sara Álvarez Solas Daniel Ansari Dana Awlia Ernest Baskin Carlota Batres Martha Lucia Borras-Guevara Cameron Brick Priyanka Chandel Armand Chatard William J. Chopik David Clarance Nicholas A. Coles Katherine S. Corker Barnaby Dixson Vilius Dranseika Yarrow Dunham Nicholas W. Fox Gwendolyn Gardiner S. Mason Garrison Tripat Gill Amanda Hahn Bastian Jaeger Pavol Kačmár Gwenaël Kaminski Philipp Kanske Zoltán Kekecs Melissa Kline Monica A. Koehn Pratibha Kujur Carmel Levitan Jeremy K. Miller Ceylan Okan Jerome Olsen Óscar Oviedo-Trespalacios Asil Ali Özdoğru Babita Pande Arti Parganiha Noorshama Parveen Gerit Pfuhl Sraddha Pradhan Ivan Ropovik Nicholas O. Rule Blair Saunders Vidar Schei Kathleen Schmidt Margaret Messiah Singh Miroslav Sirota Crystal N. Steltenpohl Stefan Stieger Daniel Storage Gavin Brent Sullivan Anna Szabelska Christian K. Tamnes Miguel A. Vadillo Jaroslava Varella Valentová Wolf Vanpaemel Marco Antônio Corrêa Varella Evie Vergauwe Mark Verschoor Michelangelo Vianello Martin Voracek Glenn Patrick Williams John Paul Wilson Janis Zickfeld Jack Arnal Burak Aydın Sau-Chin Chen Lisa M. DeBruine Ana María Fernández Kai T. Horstmann Peder Mortvedt Isager Benedict C. Jones Aycan Kapucu Hause Lin Michael C. Mensink Gorka Navarrete Miguel Alejandro A. Silan Christopher R. Chartier

Concerns about the veracity of psychological research have been growing. Many findings in science are based on studies with insufficient statistical power and nonrepresentative samples, or may otherwise be limited to specific, ungeneralizable settings populations. Crowdsourced research, a type large-scale collaboration which one more projects conducted across multiple lab sites, offers pragmatic solution these other current methodological challenges. The Psychological Science Accelerator...

10.1177/2515245918797607 article EN Advances in Methods and Practices in Psychological Science 2018-10-01

Abstract. The outbreak of the global COVID-19 pandemic has drastically altered people’s lives. Loneliness and social isolation were publicly discussed as possible psychological consequences measures taken to slow virus spread. These public discussions have sparked a surge in empirical studies on loneliness isolation. In this study, we first provide systematic review synthesizing recent literature prevalence correlates during early phase ( k = 53 studies). We found that most quantitative...

10.1027/1016-9040/a000453 article EN cc-by-nc-nd European Psychologist 2021-10-01

Repeated assessments of personality states in daily diary or experience sampling studies have become a more and common tool the psychologist's toolbox. However, contrary to widely available literature on traits, no best practices for development state measures exist, been developed many different ways. To address this, we first define what is discuss important components. On basis measure suggest general guideline such measures. Following ABC test construction can then guide strategy...

10.1002/per.2266 article EN European Journal of Personality 2020-05-11
Hannah Moshontz Lorne Campbell Charles R. Ebersole Hans IJzerman Heather L. Urry and 92 more Patrick S. Forscher Jon Grahe Randy J. McCarthy Erica D. Musser Jan Antfolk Christopher M. Castille Thomas Rhys Evans Susann Fiedler Jessica Kay Flake Diego A. Forero Jan Janssen Justin Robert Keene John Protzko Balázs Aczél Sara Álvarez Solas Daniel Ansari Dana Awlia Ernest Baskin Carlota Batres Martha Lucia Borras-Guevara Cameron Brick Priyanka Chandel Armand Chatard William J. Chopik David Clarance Nicholas A. Coles Katherine S. Corker Barnaby Dixson Vilius Dranseika Yarrow Dunham Nicholas Fox Gwendolyn Gardiner S. Mason Garrison Tripat Gill Amanda Hahn Bastian Jaeger Pavol Kačmár Gwenaël Kaminski Philipp Kanske Zoltán Kekecs Melissa Kline Monica A. Koehn Pratibha Kujur Carmel Levitan Jeremy K. Miller Ceylan Okan Jerome Olsen Óscar Oviedo-Trespalacios Asil Ali Özdoğru Babita Pande Arti Parganiha Noorshama Parveen Gerit Pfuhl Sraddha Pradhan Ivan Ropovik Nicholas Rule Blair Saunders Vidar Schei Kathleen Schmidt Margaret Messiah Singh Miroslav Sirota Crystal Steltenpohl Stefan Stieger Daniel Storage Gavin Brent Sullivan Anna Szabelska Christian K. Tamnes Miguel A. Vadillo Jaroslava Varella Valentová Wolf Vanpaemel Marco Antônio Corrêa Varella Evie Vergauwe Mark Verschoor Michelangelo Vianello Martin Voracek William Williams John Paul Wilson Jan Zickfeld Daniel Arnal Burak Aydın Sau-Chin Chen Lisa M. DeBruine Ana María Fernández Kai T. Horstmann Peder Mortvedt Isager Jon Jones Aycan Kapucu Hause Lin Michael C. Mensink Gorka Navarrete Philipp Silan Christopher R. Chartier

Concerns have been growing about the veracity of psychological research. Many findings in science are based on studies with insufficient statistical power and nonrepresentative samples, or may otherwise be limited to specific, ungeneralizable settings populations. Crowdsourced research, a type large-scale collaboration which one more research projects conducted across multiple lab sites, offers pragmatic solution these other current methodological challenges. The Psychological Science...

10.31234/osf.io/785qu preprint EN 2018-04-03

10.1016/j.paid.2018.01.020 article EN Personality and Individual Differences 2018-01-19

Convergent correlations between traits and state aggregates from experience sampling cannot fully establish trait-state homomorphy (the extent to which the same constructs are measured). With a nomological vector correlation lens model approach, we test how similar networks of each other: A trait state-aggregate capture construct when both show highly associations common set correlates. In large ( N = 209) life-logging studies 298), Extraversion, Conscientiousness, Agreeableness tended more...

10.1177/1948550618774772 article EN Social Psychological and Personality Science 2018-06-19

We present the psychometric evaluation of a personality measure that assesses Big Five and situation perception based on newly developed taxonomy characteristics. Following lexical approach, more than 15,000 adjectives were extracted from an authoritative German dictionary. In first exploratory study, 521 participants rated every-day situations 300 selected as potential descriptors. Seven dimensions initially extracted. second study with N = 387, five these seven factors confirmed:...

10.1037/pas0000654 article EN Psychological Assessment 2019-03-14

Affect and situation perception are intertwined in any given situation, but the extent to which both predict behavior jointly uniquely has not yet been systematically examined so far.Using two studies with experience sampling methodology (ESM), we examine how trait-like variables (Big Six, trait affect, general experience) state-like (momentary happiness, perception) account for variance self-reported behavioral states of Big Six.In Study 1, re-analyzed data from Sherman, Rauthmann, Brown,...

10.1037/pspp0000357 article EN Journal of Personality and Social Psychology 2020-09-17

Abstract To slow the spread of SARS-CoV-2, German government released ‘Corona-Warn-App’, a smartphone application that warns users if they have come into contact with other tested positive for SARS-CoV-2. Since using ‘Corona-Warn-App’ is health-relevant behavior, it essential to understand who (and not) and why. In N = 1972 adults, we found non-users were on average older, female, healthier, in training had low general trust others. The most frequently named reasons by privacy concerns,...

10.1093/eurpub/ckaa239 article EN European Journal of Public Health 2020-12-01

Contingencies between situational variables and psychological states have been proposed as key individual difference by many theoretical approaches to personality. Despite their relevance, the basic properties, nomological correlates, factor structure of differences in contingencies not examined so far. We address these fundamental questions five studies with overall N = 952 participants 32,052 unique assessments. Individual situation characteristic-state (SCSCs) DIAMONDS characteristics Big...

10.1037/pspp0000435 article EN Journal of Personality and Social Psychology 2022-10-06

Abstract The Approach‐Avoidance Job Crafting Scale (AAJCS) builds on our adjusted version of a hierarchical structure job crafting by Zhang and Parker from 2019. In developing validating the new AAJCS, we, first, developed German items in stepwise procedure (pilot study). Second, we tested factor reliability (Study 1). Third, replicated previous results construct validity 2). Fourth, ensured criterion AAJCS 3). suggested existence two independent factors, namely, approach avoidance crafting,...

10.1111/apps.12466 article EN cc-by Applied Psychology 2023-03-12

We investigated three different approaches for quantifying individual change and reporting it back to persons: (a) the common score, which is obtained by first computing scale scores from two consecutive measurements then subtract these one another, (b) ad-hoc approach, similar former approach but uses regression instead of scores, (c) Kelley's computes score directly a regression. Specifically, we compared with another regard mean squared error (MSE), measure accuracy an estimator. Our...

10.1080/10705511.2023.2274800 article EN Structural Equation Modeling A Multidisciplinary Journal 2024-01-30

Faking remains an unsolved problem in high-stakes personality assessment. It is important that the evaluation of so-called faking-detection scales differs between psychological disciplines. One reasons for this might be unclear nature actual faking behavior. In present study, we aimed to apply a modeling technique introduced by Ziegler, Maaß, Griffith, and Gammon (2015) allows capturing interindividual differences behavior as latent variable. We used approach isolate variance because...

10.1037/pas0000619 article EN Psychological Assessment 2019-03-14

Computational methods have increased the objectivity of measures human behavior and positioned personality science to benefit from ongoing digital revolution. In this review, we define discuss computational assessment (CPA), a measurement process that uses technologies obtain estimates personality. We briefly review some most promising sources data currently used for CPA: mobile sensing, footprints social media, images, language, experience sampling. present concise overview key findings,...

10.5964/ps.6115 article EN Personality Science 2021-07-14

Although theory emphasizes that loneliness fluctuates in everyday life, most previous studies focused on the general and stable tendency of feeling lonely. In present study, we used daily diary data collected over two 4-week periods ( N 1 = 3,309; 2 907) to examine different indicators temporal dynamics life compare them with positive negative affect. Moreover, examined associations between psychopathological symptoms (i.e., stress, anxiety, depression). We found large similarities...

10.1177/19485506231156061 article EN Social Psychological and Personality Science 2023-02-27

Abstract Objective Theories about within‐person (WP) variation are often tested using between‐person (BP) research, despite the well‐established fact that results may not generalize across levels of analysis. One possible explanation is vague theories do specify which level analysis interest. We illustrate such a case construct self‐compassion. The factor structure at BP has been highly debated, although theory actually concerned with relationships WP level. Method Multilevel confirmatory...

10.1111/jopy.12924 article EN cc-by Journal of Personality 2024-03-10

10.1027/1015-5759/a000258 article EN European Journal of Psychological Assessment 2015-05-01

Vocational interests are traditionally conceived as stable preferences for different activities. However, recent theorizing suggests their intraindividual variability. This preregistered experience sampling study examined variation in selected vocational states and related situation person factors ( N = 237). Results indicate that the three interest dimensions Investigative, Artistic, Social did vary intraindividually but less so than other phenomena’s (e.g., personality happiness). At...

10.1002/per.2287 article EN cc-by European Journal of Personality 2020-08-05

Abstract Objective Personality psychology has traditionally focused on stable between‐person differences. Yet, recent theoretical developments and empirical insights have led to a new conceptualization of personality as dynamic system (e.g., Cybernetic Big Five Theory). Such systems comprise several components that need be conceptually distinguished mapped statistical model for estimation. Method In the current work, we illustrate how common from these theories may implemented in continuous...

10.1111/jopy.12769 article EN cc-by-nc-nd Journal of Personality 2022-08-30

Major life events can impact people’s well-being or personality traits. Traditionally, have been examined by considering if they occurred not. However, this assumes that the effect of a event is similar for all participants. Therefore, it has suggested to consider subjective perception events. Yet, as with many self-reports in psychological research, on experience be biased. To gain better understanding perception, we therefore convergence self- and informant-reports major potential...

10.1177/08902070251315190 article EN cc-by European Journal of Personality 2025-01-20
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