Wattana Prohmpetch. The normative scores of intelligence by advanced progressive matrices (APM) in high achievement high school students . Master's Degree(Clinical Psychology). Mahidol University. : Mahidol University, 2004.
The normative scores of intelligence by advanced progressive matrices (APM) in high achievement high school students
Abstract:
The purpose of this descriptive research was to study the quality and the
construct of a normative scores table of intelligence by Advanced Progressive
Matrices (APM) in high achievement high school students (G.P.A. 3.00 and above).
A stratified random sampling method was used. The samples were 832 students, 406
were science program students of Mahidol Witthayanusorn School, 306 were arts
program students of Triamudomsuksa School, and 120 were Srinakarinwiroj
University Demonstration School. Data were collected by APM and WASI-T (2-
Subtests). Statistical analysis used was KR-20, item analysis, factor analysis to test
quality of APM, percentage of IQ to WASI-T, base of statistic to APM, t-test and Ftest
for compare means of variable difference, and transform to percentile and
construct the percentile norm table.
Results revealed that the quality of APM has a high reliability (KR-20 of
0.80), the range of an item discriminates from 0.03 to 0.71, mean of discrimination
(0.32) discriminating between high group and low group, the range of an items
difficulty ranges from 0.37 to 0.99, mean of difficulty (0.76) being rather easy for high
achievement high school students. Overall quality of APM results showed an standard
error of mean of 0.1628, mean of 27.55, median of 28, mode of 27, Standard deviation
of 4.69, maximum of 36, minimum of 13 and skewed of - .379. The results found that
the mean scores of APM in each age group and in arts and sciences program were
significantly different at .05 and .01, but the mean scores in each grade level were not
significantly different at .05. The factor analysis of APM found a similarity to
Spearman’s theory, in that the g-factor (general intelligence) is important.
The results led to construct a specific normative score table of intelligence by
APM in high achievement high school students (percentile norm). It divided by ages
and programs of study for appropriate use.