Mental imagery during daily life: Psychometric evaluation of the Spontaneous Use of Imagery Scale (SUIS).
The Spontaneous Use of Imagery Scale (SUIS) is used to measure the tendency to use visual mental imagery in daily life. Its psychometric properties were evaluated in three independent samples (totalN= 1297). We evaluated the internal consistency and test-retest reliability of the questionnaire. We also examined the structure of the items using exploratory and confirmatory factor analysis. Moreover, correlations with other imagery questionnaires provided evidence about convergent validity. The SUIS had acceptable reliability and convergent validity. Exploratory and confirmatory factor analysis revealed that a unidimensional structure fit the data, suggesting that the SUIS indeed measures a general use of mental imagery in daily life. Future research can further investigate and improve the psychometric properties of the SUIS. Moreover, the SUIS could be useful to determine how imagery relates to e.g. psychopathology.
Faculty of Psychology and Educational Sciences, University of Leuven, Belgium. Sabine.Nelis@ppw.kuleuven.be.
Sabine
S
Nelis
MRC Cognition and Brain Sciences Unit, Cambridge, UK.
Emily A
EA
Holmes
Northwestern University and University of Leuven.
James W
JW
Griffith
Faculty of Psychology and Educational Sciences, University of Leuven, Belgium. Sabine.Nelis@ppw.kuleuven.be.
Filip
F
Raes
factor analysis; mental imagery; questionnaire; validation