Confirmatory factor analysis of self-evaluation spatial thinking skills (SESS) measurement model

Spatial skills are important interdisciplinary abilities for students in everyday practices and on their academic journey. Several measures of spatial thinking abilities have been developed for assessing spatial skills in school context and students spatial behaviour in their everyday life. The commonly used one is the Self-Evaluation Spatial Skills (SESS), however it has not been validated. This study aimed at (i) examining the extent at which the (Self Evaluation Spatial Skills (SESS) instrument developed by Wakabayashi, (2015) constituted of meaningful and interpretable 3 dimensions of spatial skills and (ii) to test the psychometric properties of the instrument in terms of reliability and convergent validity. Using slightly modified SESS of 19 items questionnaire, the data were collected from 351 undergraduates at International Islamic University Malaysia (IIUM). Confirmatory Factor Analysis indicated a fit model of 3 factors construct and confirmed the reliability and validity of the hypothesized measurement model. The results indicated the tested model as good for measuring students’ spatial skills and spatial behaviour in their local environment and in informing future research.