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 | |
| Publication status | Published - 2014 Jan 1 |
| Externally published | Yes |
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Keywords
- Illness Awareness
- Insight
- Schizoaffective disorder
- Schizophrenia
- Symptom assessment
ASJC Scopus subject areas
- Psychiatry and Mental health
- Biological Psychiatry
Cite this
The VAGUS insight into psychosis scale - Self-report and clinician-rated versions. / Gerretsen, Philip; Remington, Gary; Borlido, Carol; Quilty, Lena; Hassan, Sabrina; Polsinelli, Gina; Teo, Celine; Mar, Wanna; Simon, Regina; Menon, Mahesh; Pothier, David D.; Nakajima, Shinichiro; Caravaggio, Fernando; Mamo, David C.; Rajji, Tarek K.; Mulsant, Benoit H.; Deluca, Vincenzo; Ganguli, Rohan; Pollock, Bruce G.; Graff-Guerrero, Ariel.
In: Psychiatry Research, Vol. 220, No. 3, 01.01.2014, p. 1084-1089.Research output: Contribution to journal › Article
}
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 - 2014/1/1
Y1 - 2014/1/1
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
VL - 220
SP - 1084
EP - 1089
JO - Psychiatry Research
JF - Psychiatry Research
SN - 0165-1781
IS - 3
ER -