National Intelligence quotient survey of Thai students in 2011

บทคัดย่อ

Objective To survey the situation of the national IQs of Thai students aged 6-15 including in region and in provincial level.

Materials and methods This study is used stratifi ed multi-stage clustor sampling to represent most population of each level. Data is drawn from 72,780 Thai students in primary and secondary school aged 6-15 using the Standard Progressive Matrices (parallel version) by well-trained clinical psychologists and psychiatric nurses. Analysis with descriptive statistics to fi nd the percentage mean, SD, and 95%
CI of mean IQ.

Results The study show the representative of estimated national IQs of Thai students aged 6-15 equals 98.6 (SD=16.4, 95%CI= 98.5-98.7). There are children who have intellectual defi cit about 6.5 percent all around the country. Considering the results in regions level has found Bangkok is highest where mean IQs is 104.5 (SD=15.9), then Mid-region is 101.3 (SD=16.2), Northern region is 100.1 (SD=16.2), Southern region is 96.9 (SD=16.8), and North-Eastern region is lowest at mean IQs equals 96.0 (SD=16.6). Seventy-six provinces are ranked highest to lowest by mean IQs score. The top three highest average IQs of the country are Nonthaburi 108.9 (95%CI=107.9-109.8), Rayong 107.5 (95%CI=106.5-108.5) and Lampang 106.6 (95%CI=105.6-107.5). For the three lowest mean IQs score are Narathiwat 88.1(SD=86.9-89.1), Pattani 91.1 (SD=89.9-92.2) and Roi-et 91.7 (SD=90.6-92.6).

Conclusion Mean National IQs of Thai students in this study is in between average IQs range, however still below the mean of the standardization of world wide, by assuming that IQ is normally distributed (IQ=100).