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Direct linkJonathan Arthur Schmidt; Gisa Aschersleben; Anne Henning – International Journal of Behavioral Development, 2025
In this longitudinal study, we investigated the factor structure and stability of early-life temperament in a German sample, using three measures developed within Rothbart's psychobiological approach. Temperament was measured using the Infant Behavior Questionnaire Revised (IBQ-R) at the ages of 6 and 12 months, the Early Childhood Behavior…
Descriptors: Foreign Countries, Personality, Personality Measures, Infants
Antoinette Y. Farmer; Yuhan Wei; Adrian Gale; N. Andrew Peterson – Journal of Psychoeducational Assessment, 2025
Objective: The factor structure of the Grit-S is the subject of much debate. The purpose of this study was to examine the factor structure of the Grit-S and validate its psychometric properties among racially/ethically minoritized adolescents using Item Response Theory (IRT). Method: Data were collected from 651 racially/ethnically minoritized…
Descriptors: Item Response Theory, Item Analysis, Self Efficacy, Personality Traits
