NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 6 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Breanne J. Byiers; Alyssa M. Merbler; Chantel C. Burkitt; Frank J. Symons – American Journal on Intellectual and Developmental Disabilities, 2025
Sleep problems are common in Rett syndrome and other neurogenetic syndromes. Actigraphy is a cost-effective, objective method for measuring sleep. Current guidelines require caregiver-reported bed and wake times to facilitate actigraphy data scoring. The current study examined missingness and consistency of caregiver-reported bed and wake times…
Descriptors: Sleep, Neurodevelopmental Disorders, Psychomotor Skills, Genetic Disorders
Peer reviewed Peer reviewed
Direct linkDirect link
Achenbach, Thomas M. – Journal of Clinical Child and Adolescent Psychology, 2011
The special section articles demonstrate the importance of informant discrepancies. They also illustrate challenges posed by discrepancies, plus opportunities for advancing research and practice. This commentary addresses these cross-cutting issues: (a) Discrepancies affect many kinds of assessment besides ratings of children's problems. (b)…
Descriptors: Measurement, Error of Measurement, Evaluation Methods, Young Children
Peer reviewed Peer reviewed
Direct linkDirect link
Boylan, Khrista; Georgiades, Katholiki; Szatmari, Peter – Journal of the American Academy of Child & Adolescent Psychiatry, 2010
Objective: Symptoms of oppositional defiant disorder (ODD) and depression show high rates of co-occurrence, both cross-sectionally and longitudinally. This study examines the extent to which variation in oppositional symptoms predict, variation in depressive symptoms over time, accounting for co-occurring depressive symptoms and measurement error.…
Descriptors: Behavior Problems, Females, Structural Equation Models, Risk
Peer reviewed Peer reviewed
Direct linkDirect link
Geiser, Christian; Eid, Michael; Nussbeck, Fridtjof W.; Courvoisier, Delphine S.; Cole, David A. – Developmental Psychology, 2010
The authors show how structural equation modeling can be applied to analyze change in longitudinal multitrait-multimethod (MTMM) studies. For this purpose, an extension of latent difference models (McArdle, 1988; Steyer, Eid, & Schwenkmezger, 1997) to multiple constructs and multiple methods is presented. The model allows investigators to separate…
Descriptors: Structural Equation Models, Multitrait Multimethod Techniques, Validity, Measurement
Wang, Lin; And Others – 1995
Research in structured equation modeling (SEM) suggests that nonnormal data will invalidate chi-square tests and produce erroneous standard errors. However, much remains unknown about the extent to which, and the conditions under which nonnormal data can affect SEM application, especially when excessive skewness and kurtosis are present in data.…
Descriptors: Behavior Patterns, Chi Square, Children, Error of Measurement
Peer reviewed Peer reviewed
Direct linkDirect link
Hardt, Jochen; Rutter, Michael – Journal of Child Psychology and Psychiatry, 2004
Background: Influential studies have cast doubt on the validity of retrospective reports by adults of their own adverse experiences in childhood. Accordingly, many researchers view retrospective reports with scepticism. Method: A computer-based search, supplemented by hand searches, was used to identify studies reported between 1980 and 2001 in…
Descriptors: Evidence, Siblings, Sexual Abuse, Validity