The VAGUS insight into psychosis scale - Self-report and clinician-rated versions

Philip Gerretsen; Gary Remington; Carol Borlido; Lena Quilty; Sabrina Hassan; Gina Polsinelli; Celine Teo; Wanna Mar; Regina Simon; Mahesh Menon; David D. Pothier; Shinichiro Nakajima; Fernando Caravaggio; David C. Mamo; Tarek K. Rajji; Benoit H. Mulsant; Vincenzo Deluca; Rohan Ganguli; Bruce G. Pollock; Ariel Graff-Guerrero

doi:10.1016/j.psychres.2014.08.005

The VAGUS insight into psychosis scale - Self-report and clinician-rated versions

Philip Gerretsen, Gary Remington, Carol Borlido, Lena Quilty, Sabrina Hassan, Gina Polsinelli, Celine Teo, Wanna Mar, Regina Simon, Mahesh Menon, David D. Pothier, Shinichiro Nakajima, Fernando Caravaggio, David C. Mamo, Tarek K. Rajji, Benoit H. Mulsant, Vincenzo Deluca, Rohan Ganguli, Bruce G. Pollock, Ariel Graff-Guerrero

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

The aim of this study was to develop self-report and clinician-rated versions of an insight scale that would be easy to administer, sensitive to small changes, and inclusive of the core dimensions of clinical insight into psychosis. Ten-item self-report (VAGUS-SR) and five-item clinician-rated (VAGUS-CR) scales were designed to measure the dimensions of insight into psychosis and evaluated in 215 and 140 participants, respectively (www.vagusonline.com). Tests of reliability and validity were performed. Both the VAGUS-SR and VAGUS-CR showed good internal consistency and reliability. They demonstrated good convergent and discriminant validity. Both versions were strongly correlated with one another and with the Schedule for the Assessment of Insight and Birchwood Insight Scale. Exploratory factor analyses identified three possible latent components of insight. The VAGUS-CR and VAGUS-SR are valid, reliable and easy to administer. They are build on previous insight scales with separate clinician-rated and self-report versions. The VAGUS-SR exhibited a multidimensional factor structure. Using a 10-point Likert scale for each item, the VAGUS has the capacity to detect small, temporally sensitive changes in insight, which is essential for intervention studies with neurostimulation or rapidly acting medications.

Original language	English
Pages (from-to)	1084-1089
Number of pages	6
Journal	Psychiatry Research
Volume	220
Issue number	3
DOIs	https://doi.org/10.1016/j.psychres.2014.08.005
Publication status	Published - 2014 Dec 30
Externally published	Yes

Keywords

Illness Awareness
Insight
Schizoaffective disorder
Schizophrenia
Symptom assessment

ASJC Scopus subject areas

Psychiatry and Mental health
Biological Psychiatry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.psychres.2014.08.005

Cite this

Gerretsen, P., Remington, G., Borlido, C., Quilty, L., Hassan, S., Polsinelli, G., Teo, C., Mar, W., Simon, R., Menon, M., Pothier, D. D., Nakajima, S., Caravaggio, F., Mamo, D. C., Rajji, T. K., Mulsant, B. H., Deluca, V., Ganguli, R., Pollock, B. G., & Graff-Guerrero, A. (2014). The VAGUS insight into psychosis scale - Self-report and clinician-rated versions. Psychiatry Research, 220(3), 1084-1089. https://doi.org/10.1016/j.psychres.2014.08.005

Gerretsen, P, Remington, G, Borlido, C, Quilty, L, Hassan, S, Polsinelli, G, Teo, C, Mar, W, Simon, R, Menon, M, Pothier, DD, Nakajima, S, Caravaggio, F, Mamo, DC, Rajji, TK, Mulsant, BH, Deluca, V, Ganguli, R, Pollock, BG & Graff-Guerrero, A 2014, 'The VAGUS insight into psychosis scale - Self-report and clinician-rated versions', Psychiatry Research, vol. 220, no. 3, pp. 1084-1089. https://doi.org/10.1016/j.psychres.2014.08.005

@article{72b5255cd87e4950b041805f62842ace,

title = "The VAGUS insight into psychosis scale - Self-report and clinician-rated versions",

abstract = "The aim of this study was to develop self-report and clinician-rated versions of an insight scale that would be easy to administer, sensitive to small changes, and inclusive of the core dimensions of clinical insight into psychosis. Ten-item self-report (VAGUS-SR) and five-item clinician-rated (VAGUS-CR) scales were designed to measure the dimensions of insight into psychosis and evaluated in 215 and 140 participants, respectively (www.vagusonline.com). Tests of reliability and validity were performed. Both the VAGUS-SR and VAGUS-CR showed good internal consistency and reliability. They demonstrated good convergent and discriminant validity. Both versions were strongly correlated with one another and with the Schedule for the Assessment of Insight and Birchwood Insight Scale. Exploratory factor analyses identified three possible latent components of insight. The VAGUS-CR and VAGUS-SR are valid, reliable and easy to administer. They are build on previous insight scales with separate clinician-rated and self-report versions. The VAGUS-SR exhibited a multidimensional factor structure. Using a 10-point Likert scale for each item, the VAGUS has the capacity to detect small, temporally sensitive changes in insight, which is essential for intervention studies with neurostimulation or rapidly acting medications.",

keywords = "Illness Awareness, Insight, Schizoaffective disorder, Schizophrenia, Symptom assessment",

author = "Philip Gerretsen and Gary Remington and Carol Borlido and Lena Quilty and Sabrina Hassan and Gina Polsinelli and Celine Teo and Wanna Mar and Regina Simon and Mahesh Menon and Pothier, {David D.} and Shinichiro Nakajima and Fernando Caravaggio and Mamo, {David C.} and Rajji, {Tarek K.} and Mulsant, {Benoit H.} and Vincenzo Deluca and Rohan Ganguli and Pollock, {Bruce G.} and Ariel Graff-Guerrero",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ireland Ltd.",

year = "2014",

month = dec,

day = "30",

doi = "10.1016/j.psychres.2014.08.005",

language = "English",

volume = "220",

pages = "1084--1089",

journal = "Psychiatry Research",

issn = "0165-1781",

publisher = "Elsevier Ireland Ltd",

number = "3",

}

TY - JOUR

T1 - The VAGUS insight into psychosis scale - Self-report and clinician-rated versions

AU - Gerretsen, Philip

AU - Remington, Gary

AU - Borlido, Carol

AU - Quilty, Lena

AU - Hassan, Sabrina

AU - Polsinelli, Gina

AU - Teo, Celine

AU - Mar, Wanna

AU - Simon, Regina

AU - Menon, Mahesh

AU - Pothier, David D.

AU - Nakajima, Shinichiro

AU - Caravaggio, Fernando

AU - Mamo, David C.

AU - Rajji, Tarek K.

AU - Mulsant, Benoit H.

AU - Deluca, Vincenzo

AU - Ganguli, Rohan

AU - Pollock, Bruce G.

AU - Graff-Guerrero, Ariel

PY - 2014/12/30

Y1 - 2014/12/30

N2 - The aim of this study was to develop self-report and clinician-rated versions of an insight scale that would be easy to administer, sensitive to small changes, and inclusive of the core dimensions of clinical insight into psychosis. Ten-item self-report (VAGUS-SR) and five-item clinician-rated (VAGUS-CR) scales were designed to measure the dimensions of insight into psychosis and evaluated in 215 and 140 participants, respectively (www.vagusonline.com). Tests of reliability and validity were performed. Both the VAGUS-SR and VAGUS-CR showed good internal consistency and reliability. They demonstrated good convergent and discriminant validity. Both versions were strongly correlated with one another and with the Schedule for the Assessment of Insight and Birchwood Insight Scale. Exploratory factor analyses identified three possible latent components of insight. The VAGUS-CR and VAGUS-SR are valid, reliable and easy to administer. They are build on previous insight scales with separate clinician-rated and self-report versions. The VAGUS-SR exhibited a multidimensional factor structure. Using a 10-point Likert scale for each item, the VAGUS has the capacity to detect small, temporally sensitive changes in insight, which is essential for intervention studies with neurostimulation or rapidly acting medications.

AB - The aim of this study was to develop self-report and clinician-rated versions of an insight scale that would be easy to administer, sensitive to small changes, and inclusive of the core dimensions of clinical insight into psychosis. Ten-item self-report (VAGUS-SR) and five-item clinician-rated (VAGUS-CR) scales were designed to measure the dimensions of insight into psychosis and evaluated in 215 and 140 participants, respectively (www.vagusonline.com). Tests of reliability and validity were performed. Both the VAGUS-SR and VAGUS-CR showed good internal consistency and reliability. They demonstrated good convergent and discriminant validity. Both versions were strongly correlated with one another and with the Schedule for the Assessment of Insight and Birchwood Insight Scale. Exploratory factor analyses identified three possible latent components of insight. The VAGUS-CR and VAGUS-SR are valid, reliable and easy to administer. They are build on previous insight scales with separate clinician-rated and self-report versions. The VAGUS-SR exhibited a multidimensional factor structure. Using a 10-point Likert scale for each item, the VAGUS has the capacity to detect small, temporally sensitive changes in insight, which is essential for intervention studies with neurostimulation or rapidly acting medications.

KW - Illness Awareness

KW - Insight

KW - Schizoaffective disorder

KW - Schizophrenia

KW - Symptom assessment

UR - http://www.scopus.com/inward/record.url?scp=84919627569&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84919627569&partnerID=8YFLogxK

U2 - 10.1016/j.psychres.2014.08.005

DO - 10.1016/j.psychres.2014.08.005

M3 - Article

C2 - 25246410

AN - SCOPUS:84919627569

VL - 220

SP - 1084

EP - 1089

JO - Psychiatry Research

JF - Psychiatry Research

SN - 0165-1781

IS - 3

ER -

The VAGUS insight into psychosis scale - Self-report and clinician-rated versions

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this