Firmanto Adi Nurcahyo, Saifuddin Azwar, Wisjnu Martani, Badrun Kartowagiran
Introduction. This study aimed to develop and establish psychometric properties of the Pictorial Vocational Interest Inventory (PVII), a vocational interest inventory for Indonesian adolescents presented in the form of picture pairs, specially developed to represent Holland's theoretical constructs. Method. To obtain the evidence of test content, 31 experts judge the suitability of the PVII's pictures with the theory. Pictures with high Aiken's V index were selected and tested to the adolescents. The participants for PVII's testing were 826 high school students. The item analysis of PVII was performed for each interest type to select pictures with the corrected item-total correlation coefficient .30 or higher. Internal consistency and test-retest procedure were applied to obtain the reliability coefficients of the PVII. The construct validity for each type of interest was analyzed using Confirmatory Factor Analysis (CFA). Results. Based on Aiken's V index of .80 or higher, 24 pictures were selected each with corrected item-total correlation coefficients ranging from .31 to .68. Cronbach's Alpha coefficients ranged from .60 to .79, while the test-retest reliability ranged from .71 to .82. The result of CFA showed that the factor loadings of the PVII's pictures ranged from .40 to .82; all of the factor loadings were significant at p < .01. Conclusion. The findings of this study provide psychometrics support of the PVII as an adequate instrument to assess vocational interest in Indonesian adolescents. © Universidad de Almería and Ilustre Colegio Oficial de la Psicología de Andalucía Oriental (Spain).
Faculty of Psychology, Universitas Gadjah Mada, Yogyakarta, Indonesia; Graduate School, Yogyakarta State University, Yogyakarta, Indonesia; Faculty of Psychology, Pelita Harapan University, Surabaya, Indonesia
