Evidence of Validity and Reliability for the Spanish Version of the Self-Identified Stage of Recovery.

Background: The Self-Identified Stage of Recovery (SISR) () is a scale used to assess both the stage of recovery (SISR-A) and the components of the process of personal recovery (SISR-B). This study aimed to develop the Spanish version of the SISR and obtain evidence of validity and reliability in a sample of 230 users of community mental health services.

Method: The Spanish version of the SISR was developed following the translation-back translation procedure, with the support of a committee of experienced experts.

Differential Item Functioning in the WHODAS 2.0 Scale in Schizophrenia: An Application of the Rasch Trees Method Based on Demographic and Clinical Covariates.

Identifying disability score differences in people with schizophrenia according to sociodemographic and clinical variables can help design better rehabilitation or care programs, but in order to compare the scores, it is necessary to confirm the measurement invariance. This study analyses differential item functioning (DIF) in the WHODAS 2.0 (WHO Disability Assessment Schedule) by applying two procedures based on Rasch trees (TREE-PCM and PCM-IFT).

The Screen for Cognitive Impairment in Psychiatry: Proposal for a polytomous scoring system.

The Screen for Cognitive Impairment in Psychiatry is a simple, fast, and easy to administer scale that has been validated in clinical and community samples. The aim of this study was to propose a polytomous scoring system for the Screen for Cognitive Impairment in Psychiatry and to demonstrate its functioning, thus providing new and complementary information regarding the utility and precision of this screening tool. Three hundred seventy-six Spanish patients diagnosed with schizophrenia spectrum disorder were evaluated.