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Temporal stability and change in manifest intelligence scores: four complementary analytic approaches

  • The temporal stability of psychological test scores is one prerequisite for their practical usability. This is especially true for intelligence test scores. In educational contexts, high stakes decisions with long-term consequences, such as placement in special education programs, are often based on intelligence test results. There are four different types of temporal stability: mean-level change, individual-level change, differential continuity, and ipsative continuity. We present statistical methods for investigating each type of stability. Where necessary, the methods were adapted for the specific challenges posed by intelligence research (e.g., controlling for general intelligence in lower order test scores). We provide step-by-step guidance for the application of the statistical methods and apply them to a real data set of 114 gifted students tested twice with a test-retest interval of 6 months. • Four different types of stability need to be investigated for a full picture of temporal stability in psychological research • Selection and adaption of the methods for the use in intelligence research • Complete protocol of the implementation

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Author:Moritz Lion Breit, Vsevolod Scherrer, Franzis Preckel
Parent Title (English):MethodsX
Place of publication:Amsterdam
Document Type:Article
Date of completion:2021/12/28
Date of publication:2021/12/28
Publishing institution:Universität Trier
Contributing corporation:The publication was funded by the Open Access Fund of Universität Trier and the German Research Foundation (DFG)
Release Date:2022/05/17
Tag:Change; Continuity; Intelligence profiles; Stability; Test-retest
GND Keyword:Intelligenztest; Reliabilität; Statistik; Testergebnis
Volume (for the year ...):2021
Issue / no.:Band 9 (2022)
Number of pages:12
Institutes:Fachbereich 1 / Psychologie
Dewey Decimal Classification:1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie
Licence (German):License LogoCC BY: Creative-Commons-Lizenz 4.0 International

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