Inspire self report scale (ISRS): A feasibility study of a Novel self report scale for people with schizophrenia spectrum disorders

Vanika Chawla; Nandini Bansal; David Spelber; Aakash Desai; Levi Frehlich; Jacob S Ballon; Agnieszka Kalinowski; Douglas L Noordsy

doi:10.1016/j.jpsychires.2023.05.047

Inspire self report scale (ISRS): A feasibility study of a Novel self report scale for people with schizophrenia spectrum disorders

J Psychiatr Res. 2023 Sep:165:248-253. doi: 10.1016/j.jpsychires.2023.05.047. Epub 2023 Jun 30.

Authors

Vanika Chawla¹, Nandini Bansal², David Spelber³, Aakash Desai⁴, Levi Frehlich⁵, Jacob S Ballon⁶, Agnieszka Kalinowski⁷, Douglas L Noordsy⁸

Affiliations

¹ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: vanikac@stanford.edu.
² McMaster University, 90 Main St W, Hamilton, ON, L8P 1H6, Canada. Electronic address: nandini.bansal@medportal.ca.
³ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: david.spelber@integralcare.org.
⁴ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: aakash@decoder.ventures.
⁵ Department of Community Health Sciences Cumming School of Medicine, University of Calgary, Canada. Electronic address: lcfrehli@ucalgary.ca.
⁶ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: jballon@stanford.edu.
⁷ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: akalinow@stanford.edu.
⁸ Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA. Electronic address: dnoordsy@stanford.edu.

PMID: 37531843
DOI: 10.1016/j.jpsychires.2023.05.047

Abstract

Clinician-rated symptom scales are the current standard for outcome measures in Schizophrenia Spectrum Disorders (SSD) research. There has been growing interest in the development of self-report measures for people with SSD to support measurement-based care and inclusive research. We developed the Inspire Self Report Scale (ISRS), which measures the current magnitude of well-being, mood symptoms, psychosis, negative symptoms and cognition using 10 questions on a Likert or Visual analogue scale (VAS). The main aim of this report was to investigate the correlation and concordance between patient self-report and clinician ratings on the ISRS during a clinical encounter. When ratings were discordant, we sought to identify whether the participant's or psychiatrist's rating was more accurate. The results indicated a moderately strong statistically significant correlation between participant and clinician ratings. There was a moderate concordance between participant and clinician ratings on the ISRS. When the results were discordant, the participant ratings were assessed to be more accurate than the clinician rating over 70% of the time. The ISRS has distinct utility compared to existing scales due to the measurement of present symptom severity, capturing multiple clinical domains, and time efficiency and ease of use. Thus, it may be useful in clinical and research settings.

Keywords: Measurement-based care; Recovery oriented care; Schizophrenia; Self-report scale.

MeSH terms

Affect
Feasibility Studies
Humans
Psychiatric Status Rating Scales
Psychotic Disorders* / diagnosis
Schizophrenia* / diagnosis
Self Report