The reliability and validity test of subjective cognitive decline questionnaire 21 with population in a Chinese community.

ABSTRACT:

Background

Subjective cognitive decline-questionnaire 9 (SCD-Q9) was developed to detect SCD complaints at risk of mild cognitive impairment (MCI). However, our previous findings indicated that its coverage might be insufficient. To test this hypothesis, we recently translated SCD-Q21.

Objective

To examine the reliability and validity of this translated SCD-Q21 and to explore its effectiveness for discriminating MCI from controls.

Methods

Item analysis was performed to understand its item discrimination and homogeneity. The Cronbach's α and Spearman-Brown's split-half coefficients were calculated to test its reliability. The Kaiser-Meyer-Olkin (KMO) value, Bartlett's sphericity test, and exploratory factor analysis (EFA) were used to examine its construct validity. Th

SUBMITTER: Hao L 

PROVIDER: S-EPMC9392547 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature