E-ISSN : 2733-4538
This study is proposed to construct VRIN and TRIN scales and to suggest the best strategy for detecting random responding in MMPI Korean version. The MMPI restandardization sample of 4202 cases was used to construct VRIN and TRIN scales. For validating these scales, the data of 131 college students and 705 psychiatric inpatients were gathered. Random responding protocols were gained from the same 131 college students. VRIN and TRIN scales had been composed of 61 and 21 item-responding pairs respectively. The distribution tables of these scales were presented, and hit rates were compared with those of other indices for detecting random responding. This study provides a comprehensive solution for detecting random responding and clarify the characteristics of VRIN, TRIN, F and NF. Since the logic and nature of VRIN and TRIN scales are applicable to other tests, the utility of this research is expected to be good in the field of psychological testing. To clinicians, it offers a pragmatic help to screen invalid protocols on MMPI.