Validation of the Short Form of the Mood Instability Questionnaire-Trait (MIQ-T-SF) in the Korean General Population
- Author:
Joohyun YOON
1
;
Hyeona YU
;
Yoonjeong JANG
;
Daseul LEE
;
Yun Seong PARK
;
Hong Kyu IHM
;
Hyun A RYOO
;
Nayoung CHO
;
Jakyung LEE
;
Yeoju KIM
;
Jungkyu PARK
;
Hyo Shin KANG
;
Tae Hyon HA
;
Woojae MYUNG
Author Information
- Publication Type:Original Article
- From:Psychiatry Investigation 2023;20(5):408-417
- CountryRepublic of Korea
- Language:English
-
Abstract:
Objective:Mood instability (MI) is a clinically significant trait associated with psychiatric disorders. However, there are no concise measurements to evaluate MI. The initial Mood Instability Questionnaire-Trait (MIQ-T) was developed to fill this gap. The current study aimed to create a short form of MIQ-T (MIQ-T-SF) that measures MI with high validity and reliability in the Korean general population.
Methods:Of the 59 items in the MIQ-T, 17 items were chosen for the MIQ-T-SF following the factor analysis process. In total, 540 participants completed the MIQ-T-SF. Cronbach’s alpha and McDonald’s omega were used to evaluate reliability. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were used to determine construct validity. Concurrent validity was confirmed via comparisons with Personality Assessment Inventory-Borderline Features Scale. Measurement invariance across gender and age groups was confirmed before analyzing differences in scores using Kruskal-Wallis test.
Results:The MIQ-T-SF displayed expected correlations and high internal consistency (α=0.71–0.90, Ωt=0.72–0.92). Using EFA and CFA, a five-factor structure was confirmed. Measurement invariance was supported, and gender differences were observed.
Conclusion:The MIQ-T-SF is an accurate and reliable method to detect MI in the Korean general population. The study’s results offer new perspectives for future studies on MI.
