Related Experiment Video
Updated: Mar 15, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Sibling Relationships in Adolescence and Early Adulthood With People Who Have Intellectual Disability
Frank J Floyd1, Catherine L Costigan1, Shana S Richardson
1Frank J. Floyd, University of Hawaii at Manoa, Department of Psychology; Catherine L. Costigan, University of Victoria; and Shana S. Richardson, Georgia State University.
Abstract:
Cross-sectional (N = 106) and longitudinal (N = 35) samples of siblings (ages 11-38) reported on closeness and conflict in their relationships with sisters and brothers with intellectual disability. For closeness, confirmatory factor analysis (CFA) distinguished feelings of emotional closeness from reciprocal sharing behaviors for these siblings. Age effects and changes over time indicated increasing emotional closeness and a general reduction in conflict from adolescence to young adulthood, with stable reciprocal sharing. Cross-sectionally, closeness was greater when siblings were involved in caregiving, and conflict was less when siblings no longer co-resided. Sibling constellation features (sex, birth order, age spacing) had limited effects at this developmental period. Findings support a combination of life-span developmental change and enduring attachment in these sibling relationships.
More Related Videos
11:14A Novel Experimental and Analytical Approach to the Multimodal Neural Decoding of Intent During Social Interaction in Freely-behaving Human Infants
Published on: October 4, 2015
12:55Multimodal Protocol for Assessing Metacognition and Self-Regulation in Adults with Learning Difficulties
Published on: September 27, 2020
Related Concept Videos
Relationship with Other Adult Family Members and Siblings
Intellectual Disability
Cognitive Development During Adolescence
Adler's Individual Psychology
Erikson's Theory on Socioemotional Development during Adolescence
Learning Disabilities
Dyslexia
Dyslexia is a...