Korean-Wechsler Adult Intelligence Scale-IV (K-WAIS-IV) Short Form

The Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) was developed as a measure of general intellectual functioning (Wechsler, 2008). In the present study, a brief version of K-WAIS-IV was used to see if there was a difference in intelligence among groups and control the difference. The Arithmetic (AR) and Information (IN) subtests of the K-WAIS-IV were used, as these subtests were reported to have the strongest correlation with the full scale intelligence quotient (IQ) in the K-WAIS-IV as a screening measure of intelligence (Hwang et al., 2012; Choe et al., 2014). The estimated full-scale IQ was calculated using suggested regression equations [54.762 + (2.330 × AR) + (2.151 × IN)] (Choe et al., 2014). The higher the estimated IQ, the higher their intelligence.