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Mekonnen, Abebayehu Messele – Educational Psychology in Practice, 2023
This exploratory study aimed at developing a dyslexia assessment tool in the Amharic language and to collect initial reliability and validity data on the tool designed to identify dyslexia in Grade 3. The developed battery consists of 10 tests. Data were collected from 121 Amharic-speaking children, aged 9-12 years. Evidence of construct validity…
Descriptors: Dyslexia, Screening Tests, Identification, Grade 3
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Chen, Xiaomeng; Lu, Minghui; Bu, Wenfeng; Wang, Li; Wang, Yuru; Xu, Yulin; Zhong, Mingbo – Journal of Visual Impairment & Blindness, 2021
Introduction: Numerous studies have investigated the use of Wechsler tests on individuals with visual impairments. However, few studies have examined the utilization of the fourth edition of the Wechsler Intelligence Scale for Children (WISC-IV) for such individuals. This study investigated the reliability and validity of the WISC-IV Verbal…
Descriptors: Blindness, Verbal Ability, Reliability, Factor Analysis
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Maynard, Jennifer L.; Floyd, Randy G.; Acklie, Teresa J.; Houston, Lawrence, III – School Psychology Quarterly, 2011
The purpose of this study was to investigate the "g" loadings and specific effects of the core and diagnostic composite scores from the Differential Abilities Scales, Second Edition (DAS-II; Elliott, 2007a). Scores from a subset of the DAS-II standardization sample for ages 3:6 to 17:11 were submitted to principal factor analysis. Four…
Descriptors: Age, Construct Validity, Short Term Memory, Factor Analysis
Serafini, Ellen Johnson – ProQuest LLC, 2013
This study examined the second language (L2) development of adult learners of Spanish at three levels of proficiency during and after a semester of instruction. A fundamental goal was to identify cognitive and psychosocial individual differences (IDs) that can explain between-learner variation over time in order to expand our understanding of the…
Descriptors: Second Language Learning, Spanish, Language Aptitude, Language Processing
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Phillipson, Sivanes; Phillipson, Shane N. – Educational Psychology, 2010
This study describes the validation and interpretation of the Parents' Attributions and Perception Questionnaire (PAPQ) using confirmatory factor analysis and Rasch modelling to report both the construct validity and category structure of the scales in the questionnaire. The PAPQ was developed to reflect the proposal that parents mediate the…
Descriptors: School Involvement, Academic Achievement, Construct Validity, Validity