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Quigley, Jean; Nixon, Elizabeth – Journal of Child Language, 2020
Research on sources of individual difference in parental Infant-Directed Speech (IDS) is limited and there is a particular lack of research on fathers' compared to mothers' speech. This study examined the predictive relations between infant characteristics and variability in paternal lexical diversity (LD) in dyadic free play with two-year-olds (M…
Descriptors: Fathers, Infants, Parent Child Relationship, Speech Communication
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Tillmann, J.; Ashwood, K.; Absoud, M.; Bölte, S.; Bonnet-Brilhault, F.; Buitelaar, J. K.; Calderoni, S.; Calvo, R.; Canal-Bedia, R.; Canitano, R.; De Bildt, A.; Gomot, M.; Hoekstra, P. J.; Kaale, A.; McConachie, H.; Murphy, D. G.; Narzisi, A.; Oosterling, I.; Pejovic-Milovancevic, M.; Persico, A. M.; Puig, O.; Roeyers, H.; Rommelse, N.; Sacco, R.; Scandurra, V.; Stanfield, A. C.; Zander, E.; Charman, T. – Journal of Autism and Developmental Disorders, 2018
Research on sex-related differences in Autism Spectrum Disorder (ASD) has been impeded by small samples. We pooled 28 datasets from 18 sites across nine European countries to examine sex differences in the ASD phenotype on the ADI-R (376 females, 1763 males) and ADOS (233 females, 1187 males). On the ADI-R, early childhood restricted and…
Descriptors: Gender Differences, Age Differences, Diagnostic Tests, Observation
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Cressman, Markus N.; Liljequist, Laura – Journal of Learning Disabilities, 2014
The "Woodcock-Johnson III" Tests of Achievement grade norms versus age norms were examined in the calculation of discrepancy scores in 202 college students. Difference scores were calculated between the "Wechsler Adult Intelligence Scale-3rd Edition" Full Scale IQ and the "Woodcock-Johnson III" Total Achievement,…
Descriptors: Achievement Tests, College Students, Norms, Age
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Zhou, Xiaobin; Zhu, Jianjun; Weiss, Lawrence G. – Journal of Psychoeducational Assessment, 2010
This study investigated the Wechsler Performance IQ (PIQ) or Perceptual Reasoning Index (PRI)/ Perceptual Organization Index (POI) change over time and its relation to ability levels. PIQ or PRI/ POI was analyzed because of the known sensitivity of nonverbal scales to the Flynn effect. Scores were analyzed using two methods. First, analysis of…
Descriptors: Intelligence Quotient, Intelligence Tests, Age Differences, Change
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Gregoire, Jacques – International Journal of Testing, 2001
Studied the factors underlying the aging effects seen on the Wechsler Intelligence Scale for Adults-Revised (WAIS-R) and the scale's third edition (WAIS-III) using the French standardization samples of 1,104 for the WAIS-III and 1,000 for the WAIS-R. Results show that the observed decline in scores for both tests cannot be fully explained with a…
Descriptors: Adults, Age Differences, Foreign Countries, Intelligence Tests
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McCurry, Susan M.; And Others – Psychological Assessment, 1994
Intelligence quotient (IQ) scores of 216 elderly Alzheimer's Disease patients based on 3 sets of recent age-extended norms were compared. Results demonstrate the importance of reporting the normative sample on which IQ scores for older adults are based and provide guidelines for selecting a set of age-related norms. (SLD)
Descriptors: Age Differences, Aging (Individuals), Alzheimers Disease, Comparative Analysis