본 연구는 성인의 지능이 연령이 증가하면서, 성별, 학업별, 경제적 수준별에 따라서 어떻게 발달하는가를 K-WAIS 측정도구로 유동적 지능(Gf)과 결정적 지능(Gc)을 측정하였다. Gf검사는 K-WAIS의 동작성 검사(Performance Scale)로, Gc검사는 K-WAIS의 언어성 검사(Verbal Scale)로 측정하였고, 연구의 대상은 웩슬러(Wechsler) 지능검사(Intelligence Scale)의 연령별 분류 기준인 20~24세, 25~34세, 35~44세, 45~54세, 55~64세의 5개 그룹으로 나누어 총 280명을 대상으로 성인지능 발달 경향을 분석하였으며 결과는다음과같다. 첫째, 연령이 증가함에 따라 성인기의 Gf, Gc는 유의미한 차이가 있었다. 둘째, 성별에 따른 Gf, Gc는 통계적으로 유의미하지 않았다. 셋째, 학업에 따른 Gf, Gc의 성인초기와 성인후기의 발달경향은 Gf, Gc 모두 성인후기가 유의미하게 높았다. 넷째, 경제적 수준이 높은 집단과 낮은 집단의 Gf, Gc는 경제적수준이 높은 집단이 낮은 집단보다 유의미하게 높았다.The purpose of this study was to measure how the intelligence of the adult is developing in proportion to their sex, schoolwork, standard of living as they grow old. Both Gf and Gc has been conducted by means of K-WAIS, and then Gf (done) by Performance Scale, Gc by Verbal one respectively. This study collected the data from 280 persons in total, and which was classified into age-groups(i.e; from 20 to 24, 25 to 34, 35 to 44, 45 to 54, 55 to 64) according to the intelligence Scale developed by Wechsler's intelligence Scale, and also analyzed accordingly.
The results of this study are as follows; First, there has been a significant difference between Gc and Gf(at the adult period)in proportion to their ages. Second, Gc and Gf have not statistically significant in proportion to their sex. Third, Gf and Gc with the schoolwork at the later-adult period has been as higher significantly in comparison with that at an early period in proportion to their academic background and ages. Fourth, in comparison of Gf and Gc between the higher standard of living and that of the lower one, the former has been higher significantly than the latter.