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Research Output 2003 2020

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Article
2017
12 Citations (Scopus)
Emotions
Learning systems
Time series
Aptitude
Mathematical models
9 Citations (Scopus)

How the social ecology and social situation shape individuals' affect valence and arousal

Vogel, N., Ram, N., Conroy, D. E., Pincus, A. L. & Gerstorf, D., Apr 1 2017, In : Emotion. 17, 3, p. 509-527 19 p.

Research output: Contribution to journalArticle

Social Environment
Arousal
Interpersonal Relations
4 Citations (Scopus)

IV. DEVELOPMENTS IN THE ANALYSIS OF LONGITUDINAL DATA

Grimm, K. J., Davoudzadeh, P. & Ram, N., Jun 1 2017, In : Monographs of the Society for Research in Child Development. 82, 2, p. 46-66 21 p.

Research output: Contribution to journalArticle

Research
Growth
Growth and Development
Analysis of Variance
4 Citations (Scopus)

Levels of and changes in life satisfaction predict mortality hazards: Disentangling the role of physical health, perceived control, and social orientation

Hülür, G., Heckhausen, J., Hoppmann, C. A., Infurna, F. J., Wagner, G. G., Ram, N. & Gerstorf, D., Sep 2017, In : Psychology and aging. 32, 6, p. 507-520 14 p.

Research output: Contribution to journalArticle

Mortality
Health
Economics
Growth
Research
2 Citations (Scopus)

Reduced impact of alcohol use on next-day tiredness in older relative to younger adults: A role for sleep duration

Lydon-Staley, D. M., Ram, N., Brose, A. & Schmiedek, F., Nov 2017, In : Psychology and aging. 32, 7, p. 642-653 12 p.

Research output: Contribution to journalArticle

Young Adult
Sleep
Alcohols
Age Groups
5 Citations (Scopus)

Terminal decline in well-being: The role of multi-indicator constellations of physical health and psychosocial correlates

Brandmaier, A. M., Ram, N., Wagner, G. G. & Gerstorf, D., May 2017, In : Developmental psychology. 53, 5, p. 996-1012 17 p.

Research output: Contribution to journalArticle

Social Participation
well-being
Structural Models
Health
social participation
1 Citation (Scopus)

Terminal decline in well-being differs between residents in East Germany and West Germany

Vogel, N., Gerstorf, D., Ram, N., Goebel, J. & Wagner, G. G., Jan 1 2017, In : International Journal of Behavioral Development. 41, 1, p. 115-126 12 p.

Research output: Contribution to journalArticle

East Germany
West Germany
German Democratic Republic (GDR)
reunification
well-being
9 Citations (Scopus)
Multilevel Analysis
Ambulatory Monitoring
Ecology
Ecological Momentary Assessment
Research
3 Citations (Scopus)

The role of morbidity for proxy-reported well-being in the last year of life

Gerlach, K., Ram, N., Infurna, F. J., Vogel, N., Wagner, G. G. & Gerstorf, D., Sep 2017, In : Developmental psychology. 53, 9, p. 1795-1809 15 p.

Research output: Contribution to journalArticle

Proxy
morbidity
well-being
Morbidity
dying
2016
7 Citations (Scopus)

A Comparison of Two-Stage Approaches for Fitting Nonlinear Ordinary Differential Equation Models with Mixed Effects

Chow, S. M., Bendezú, J. J., Cole, P. M. & Ram, N., May 3 2016, In : Multivariate Behavioral Research. 51, 2-3, p. 154-184 31 p.

Research output: Contribution to journalArticle

Mixed Effects
Nonlinear Ordinary Differential Equations
Ordinary differential equation
Functional Differential Equations
Model
18 Citations (Scopus)

Daily actigraphy profiles distinguish depressive and interepisode states in bipolar disorder

Gershon, A., Ram, N., Johnson, S. L., Harvey, A. G. & Zeitzer, J. M., Jan 1 2016, In : Clinical Psychological Science. 4, 4, p. 641-650 10 p.

Research output: Contribution to journalArticle

Actigraphy
Bipolar Disorder
Locomotion
Mood Disorders
6 Citations (Scopus)

Empathic accuracy for happiness in the daily lives of older couples: Fluid cognitive performance predicts pattern accuracy among men

Hülür, G., Hoppmann, C. A., Rauers, A., Schade, H., Ram, N. & Gerstorf, D., Aug 1 2016, In : Psychology and aging. 31, 5, p. 545-552 8 p.

Research output: Contribution to journalArticle

Happiness
6 Citations (Scopus)

Health sensitivity: Age differences in the within-person coupling of individuals' physical health and well-being

Schöllgen, I., Morack, J., Infurna, F. J., Ram, N. & Gerstorf, D., Nov 1 2016, In : Developmental psychology. 52, 11, p. 1944-1953 10 p.

Research output: Contribution to journalArticle

age difference
well-being
human being
Health
health
10 Citations (Scopus)

Knowledge lability: Within-person changes in parental knowledge and their associations with adolescent problem behavior

Lippold, M. A., Fosco, G. M., Ram, N. & Feinberg, M. E., Jan 1 2016, In : Prevention Science. 17, 2, p. 274-283 10 p.

Research output: Contribution to journalArticle

Adolescent Behavior
Tobacco Use
Problem Behavior
Longitudinal Studies
Parents
7 Citations (Scopus)

Maintaining perceived control with unemployment facilitates future adjustment

Infurna, F. J., Gerstorf, D., Ram, N., Schupp, J., Wagner, G. G. & Heckhausen, J., Apr 1 2016, In : Journal of Vocational Behavior. 93, p. 103-119 17 p.

Research output: Contribution to journalArticle

Social Adjustment
Unemployment
unemployment
Perceived control
SOEP
4 Citations (Scopus)

Modeling Self-Regulation as a Process Usinga Multiple Time-Scale Multiphase Latent Basis Growth Model

Helm, J. L., Ram, N., Cole, P. M. & Chow, S. M., Sep 2 2016, In : Structural Equation Modeling. 23, 5, p. 635-648 14 p.

Research output: Contribution to journalArticle

Multiple Time Scales
Growth Model
self-regulation
Burst
Modeling
32 Citations (Scopus)

Personality trait development at the end of life: Antecedents and correlates of mean-level trajectories

Wagner, J., Ram, N., Smith, J. & Gerstorf, D., Sep 1 2016, In : Journal of Personality and Social Psychology. 111, 3, p. 411-429 19 p.

Research output: Contribution to journalArticle

Personality Development
neuroticism
personality traits
health
performance
12 Citations (Scopus)

Stressor diversity: Introduction and empirical integration into the daily stress model

Koffer, R. E., Ram, N., Conroy, D. E., Pincus, A. L. & Almeida, D. M., Jun 1 2016, In : Psychology and aging. 31, 4, p. 301-320 20 p.

Research output: Contribution to journalArticle

Health
18 Citations (Scopus)

Terminal decline in well-being: The role of social orientation

Gerstorf, D., Hoppmann, C. A., Löckenhoff, C. E., Infurna, F. J., Schupp, J., Wagner, G. G. & Ram, N., Mar 1 2016, In : Psychology and aging. 31, 2, p. 149-165 17 p.

Research output: Contribution to journalArticle

Social Participation
Individuality
Length of Stay
Economics
Education
8 Citations (Scopus)
Sampling Studies
Sleep
Alcohols
Sampling
Ecological Momentary Assessment
5 Citations (Scopus)

Trajectories of adolescent substance use development and the influence of healthy leisure: A growth mixture modeling approach

Weybright, E. H., Caldwell, L. L., Ram, N., Smith, E. A. & Wegner, L., Jun 1 2016, In : Journal of Adolescence. 49, p. 158-169 12 p.

Research output: Contribution to journalArticle

Leisure Activities
Growth
Students
4 Citations (Scopus)

Understanding Process in Group-Based Intervention Delivery: Social Network Analysis and Intra-entity Variability Methods as Windows into the “Black Box”

Molloy Elreda, L., Coatsworth, J. D., Gest, S. D., Ram, N. & Bamberger, K., Nov 1 2016, In : Prevention Science. 17, 8, p. 925-936 12 p.

Research output: Contribution to journalArticle

Group Processes
Social Support
Mindfulness
Parents
2015
9 Citations (Scopus)

A framework for studying mechanisms underlying terminal decline in well-being

Gerstorf, D. & Ram, N., May 4 2015, In : International Journal of Behavioral Development. 39, 3, p. 210-220 11 p.

Research output: Contribution to journalArticle

Empirical Research
Statistical Factor Analysis
well-being
empirical research
factor analysis
32 Citations (Scopus)

Boredom Prone or Nothing to Do? Distinguishing Between State and Trait Leisure Boredom and Its Association with Substance Use in South African Adolescents

Weybright, E. H., Caldwell, L. L., Ram, N., Smith, E. A. & Wegner, L., Aug 8 2015, In : Leisure Sciences. 37, 4, p. 311-331 21 p.

Research output: Contribution to journalArticle

leisure and recreation
boredom
boring
adolescent
leisure research
6 Citations (Scopus)

Bursts of Self-Conscious Emotions in the Daily Lives of Emerging Adults

Conroy, D. E., Ram, N., Pincus, A. L. & Rebar, A. L., May 4 2015, In : Self and Identity. 14, 3, p. 290-313 24 p.

Research output: Contribution to journalArticle

Emotions
Guilt
Binomial Distribution
Ego
Social Behavior
15 Citations (Scopus)

Cognitive dedifferentiation with increasing age and proximity of death: Within-person evidence from the seattle longitudinal study

Hülür, G., Ram, N., Willis, S. L., Warner Schaie, K. & Gerstorf, D., Jun 1 2015, In : Psychology and aging. 30, 2, p. 311-323 13 p.

Research output: Contribution to journalArticle

Aptitude
Longitudinal Studies
Psychology
Research
16 Citations (Scopus)

Daily physical activity and alcohol use across the adult lifespan

Conroy, D. E., Ram, N., Pincus, A. L., Coffman, D. L., Lorek, A. E., Rebar, A. L. & Roche, M. J., Jun 1 2015, In : Health Psychology. 34, 6, p. 653-660 8 p.

Research output: Contribution to journalArticle

Alcohols
Alcohol Drinking
Causality
Artifacts
26 Citations (Scopus)

Daily physical activity and life satisfaction across adulthood

Maher, J. P., Pincus, A. L., Ram, N. & Conroy, D. E., Oct 1 2015, In : Developmental psychology. 51, 10, p. 1407-1419 13 p.

Research output: Contribution to journalArticle

adulthood
Exercise
human being
life-span
satisfaction with life
5 Citations (Scopus)

Developmental associations between short-term variability and long-term changes: Intraindividual correlation of positive and negative affect in daily life and cognitive aging

Hülür, G., Hoppmann, C. A., Ram, N. & Gerstorf, D., Jul 1 2015, In : Developmental psychology. 51, 7, p. 987-997 11 p.

Research output: Contribution to journalArticle

cognitive ability
Aptitude
level of education
Berlin
resilience
36 Citations (Scopus)

Development and Lability in the Parent-Child Relationship During Adolescence: Associations With Pubertal Timing and Tempo

Marceau, K., Ram, N. & Susman, E. J., Sep 1 2015, In : Journal of Research on Adolescence. 25, 3, p. 474-489 16 p.

Research output: Contribution to journalArticle

Parent-Child Relations
parent-child relationship
adolescence
parents
National Institute of Child Health and Human Development (U.S.)
16 Citations (Scopus)

Historical improvements in well-being do not hold in late life: Birthand death-year cohorts in the United States and Germany

Hülür, G., Ram, N. & Gerstorf, D., Jul 1 2015, In : Developmental psychology. 51, 7, p. 998-1012 15 p.

Research output: Contribution to journalArticle

Germany
well-being
death
SOEP
old age
21 Citations (Scopus)

Implications of ongoing neural development for the measurement of the error-related negativity in childhood

Dupuis, D., Ram, N., Willner, C. J., Karalunas, S., Segalowitz, S. J. & Gatzke-Kopp, L. M., May 1 2015, In : Developmental Science. 18, 3, p. 452-468 17 p.

Research output: Contribution to journalArticle

Evoked Potentials
Research
Individuality
Biomarkers
7 Citations (Scopus)

Repetitive thought dimensions, psychological well-being, and perceived growth in older adults: a multilevel, prospective study

Segerstrom, S. C., Eisenlohr-Moul, T. A., Evans, D. R. & Ram, N., May 4 2015, In : Anxiety, Stress and Coping. 28, 3, p. 287-302 16 p.

Research output: Contribution to journalArticle

Prospective Studies
Psychology
Growth
Thought
Psychological Well-being
17 Citations (Scopus)

Self-esteem is relatively stable late in life: The role of resources in the health, self-regulation, and social domains

Wagner, J., Hoppmann, C., Ram, N. & Gerstorf, D., Jan 1 2015, In : Developmental psychology. 51, 1, p. 136-149 14 p.

Research output: Contribution to journalArticle

Health Resources
self-regulation
Self Concept
self-esteem
health
36 Citations (Scopus)

The Effects of Stress on Cognitive Aging, Physiology and Emotion (ESCAPE) Project

Scott, S. B., Graham-Engeland, J. E., Engeland, C. G., Smyth, J. M., Almeida, D. M., Katz, M. J., Lipton, R. B., Mogle, J. A., Munoz, E., Ram, N. & Sliwinski, M. J., Jul 3 2015, In : BMC psychiatry. 15, 1, 146.

Research output: Contribution to journalArticle

Emotions
Sampling Studies
Health
Inflammation
Psychological Stress
16 Citations (Scopus)

Using the EZ-diffusion model to score a single-category implicit association test of physical activity

Rebar, A. L., Ram, N. & Conroy, D. E., Mar 1 2015, In : Psychology of Sport and Exercise. 16, P3, p. 96-105 10 p.

Research output: Contribution to journalArticle

Exercise
Automatic Data Processing
Artifacts
Students
Structural Models
2014
63 Citations (Scopus)

An ensemble heterogeneous classification methodology for discovering health-related knowledge in social media messages

Tuarob, S., Tucker, C. S., Salathe, M. & Ram, N., Jan 1 2014, In : Journal of Biomedical Informatics. 49, p. 255-268 14 p.

Research output: Contribution to journalArticle

Social Media
Health
Classifiers
Learning systems
Experiments
17 Citations (Scopus)

Capturing Intraindividual Variation and Covariation Constructs: Using Multiple Time-Scales to Assess Construct Reliability and Construct Stability

Mejía, S., Hooker, K., Ram, N., Pham, T. & Metoyer, R., Apr 2014, In : Research in Human Development. 11, 2, p. 91-107 17 p.

Research output: Contribution to journalArticle

Life Change Events
Human Development
Optimism
12 Citations (Scopus)
Curriculum
Parents
Deceleration
Growth
Research
10 Citations (Scopus)

Comparing changes in late-life depressive symptoms across aging, disablement, and mortality processes

Fauth, E. B., Gerstorf, D., Ram, N. & Malmberg, B., Jan 1 2014, In : Developmental psychology. 50, 5, p. 1584-1593 10 p.

Research output: Contribution to journalArticle

mortality
Depression
Mortality
death
disability
41 Citations (Scopus)

Enriching Psychological Assessment Using a Person-Specific Analysis of Interpersonal Processes in Daily Life

Roche, M. J., Pincus, A. L., Rebar, A. L., Conroy, D. E. & Ram, N., Oct 1 2014, In : Assessment. 21, 5, p. 515-528 14 p.

Research output: Contribution to journalArticle

Psychology
Anger
Self Concept
Psychotherapy
46 Citations (Scopus)
Health
Sampling Studies
Human Development
Interpersonal Relations
Mental Health
24 Citations (Scopus)

Field study of office worker responses to fluorescent lighting of different CCT and lumen output

Wei, M., Houser, K. W., Orland, B., Lang, D. H., Ram, N., Sliwinski, M. J. & Bose, M., Jan 1 2014, In : Journal of Environmental Psychology. 39, p. 62-76 15 p.

Research output: Contribution to journalArticle

Lighting
Color
Visual Perception
Temperature
Ecological Momentary Assessment
17 Citations (Scopus)

Interpersonal dependency and emotion in every day life

Wang, S., Roche, M. J., Pincus, A. L., Conroy, D. E., Rebar, A. L. & Ram, N., Jan 1 2014, In : Journal of Research in Personality. 53, p. 5-12 8 p.

Research output: Contribution to journalArticle

Emotions
Personality
Students
Costs and Cost Analysis
Dependency (Psychology)
7 Citations (Scopus)

Linking concurrent self-reports and retrospective proxy reports about the last year of life: A prevailing picture of life satisfaction decline

Infurna, F. J., Gerstorf, D., Ram, N., Schupp, J., Sprangers, M. A. G. & Wagner, G. G., Sep 2014, In : Journals of Gerontology - Series B Psychological Sciences and Social Sciences. 69, 5, p. 695-709 15 p.

Research output: Contribution to journalArticle

Proxy
Self Report
death
well-being
SOEP
31 Citations (Scopus)

Longitudinal associations of subjective memory with memory performance and depressive symptoms: Between-person and within-person perspectives

Hülür, G., Hertzog, C., Pearman, A., Ram, N. & Gerstorf, D., Jan 1 2014, In : Psychology and Aging. 29, 4, p. 814-827 14 p.

Research output: Contribution to journalArticle

Depression
Episodic Memory
Retirement
Memory Disorders
Education
26 Citations (Scopus)

Perceived personal control buffers terminal decline in well-being

Gerstorf, D., Heckhausen, J., Ram, N., Infurna, F. J., Schupp, J. & Wagner, G. G., Sep 1 2014, In : Psychology and aging. 29, 3, p. 612-625 14 p.

Research output: Contribution to journalArticle

Buffers
Individuality
Emotions
Economics
Mortality
11 Citations (Scopus)

Playing off the curve -testing quantitative predictions of skill acquisition theories in development of chess performance

Gaschler, R., Progscha, J., Smallbone, K., Ram, N. & Bilalic, M., Jan 1 2014, In : Frontiers in Psychology. 5, AUG, Article 923.

Research output: Contribution to journalArticle

Learning Curve
Learning
61 Citations (Scopus)

Saving energy in an office environment: A serious game intervention

Orland, B., Ram, N., Lang, D., Houser, K., Kling, N. & Coccia, M., May 1 2014, In : Energy and Buildings. 74, p. 43-52 10 p.

Research output: Contribution to journalArticle

Energy conservation
Energy utilization
Farms
Accessories
Serious games
11 Citations (Scopus)

The dynamic association between healthy leisure and substance use in South African adolescents: A state and trait perspective

Weybright, E. H., Caldwell, L. L., Ram, N., Smith, E. & Jacobs, J., Jan 1 2014, In : World Leisure Journal. 56, 2, p. 99-109 11 p.

Research output: Contribution to journalArticle

Leisure Activities
adolescent
Adolescent Behavior
resource
risk behavior