Cognitive Reserve Questionnaire: Psychometric analysis from the item response theory

Translated title of the contribution: Cuestionario de reserva cognitiva: Análisis psicométrico desde la teoría de respuesta al ítem

Pablo Martino, Tomás Caycho-Rodríguez, Pablo D. Valencia, Daniel Politis, Miguel Gallegos, Miguel Á.De Bortoli, Mauricio Cervigni

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Introduction. Cognitive reserve is the ability to better tolerate brain damage through pre-existing and compensatory cognitive resources. One assessment method is the Rami CRQ-Cognitive Reserve Questionnaire. The objective was to carry out an analysis of the informative quality of the CRQ from the item response theory (IRT), in order to provide more precise data on the reliability of internal consistency. Convergent validity was also tested with measures of attention, working memory, and fluency. Subjects and methods. 210 Argentines from the general population (mean age, 66.8 years) participated. The CRQ was administered together with the digits test and three fluency tasks. A graded response model was fitted from IRT with estimation of discrimination parameters (a) and difficulty (b), and a CRQ information curve was created. Bivariate and partial correlations were made. Results. The IRT indicated high discrimination for the CRQ items 'Education' and 'Occupation level' (both for the 8-item version and the 6-item version). In the CRQ of 8 items, low discrimination was obtained for 'Musical training' and 'Intellectual games'. In both versions of the CRQ, the curve indicates greater informational value at a low level of the construct. There was a correlation with the digits test and with fluency tasks, even when controlling for age. Conclusions. This study is the first analysis of CRQ from IRT, concluding that the instrument is more reliable when applied to subjects with less reserve. The CRQ has acceptable convergent validity.

Translated title of the contributionCuestionario de reserva cognitiva: Análisis psicométrico desde la teoría de respuesta al ítem
Original languageSpanish
Pages (from-to)173-180
Number of pages8
JournalRevista de Neurologia
Volume75
Issue number7
DOIs
StatePublished - 2022
Externally publishedYes

Fingerprint

Dive into the research topics of 'Cuestionario de reserva cognitiva: Análisis psicométrico desde la teoría de respuesta al ítem'. Together they form a unique fingerprint.

Cite this