This study was designed to synthesize quantitatively the master's theses and doctoral dissertations focusing on effects of academic achievement in Korea. This task was accomplished by utilizing the meta - analysis technique of research integration as ...
This study was designed to synthesize quantitatively the master's theses and doctoral dissertations focusing on effects of academic achievement in Korea. This task was accomplished by utilizing the meta - analysis technique of research integration as defined by Class(1982). Basically, meta- analysis is a statistical analysis of the summary findings of many empirical studies. Its purpose is to draw reliable and general conclusions from a large and complex body of literature on a common topic. Thus, the primary purpose of this study was to conduct a quantitative synthesis of 163 master's theses and doctoral dissertations focusing on the effects of the academic achievement. Fourteen independent variables were chosen after review those 163 studies. These were home environment, learning climate, teacher trait, intelligence, creativity, cognitive style, self - concept, anxiety, learning attitude, achievement motivation, personality, academic engaged time, quality of instructional experience, and the others. This study also assesed the relationship between moderator variables and effect sizes. The moderator variables investigated were sex, grade, and subject area.
The standard procedures which are analogous to these performed during primary research were used in this meta-analysis : locating studies(data collection), coding the characteristics and outcomes of the studies(evaluation of data points), and using statistical procedures of meta-analysis to describe the overall and subsample effects(data analysis and interpretation).
This meta-analysis has shown a quantifiable positive effect of academic achievement with an overall average. 67 standard deviation. This effect size of. 67 indicate that on the average, the experimental group mean score were increased 24.86 percentile than the control group mean score. In addition, this study calculated effect sizes of intellectual variable group, instruction variable group, social-psychological variable group, affective variable group, and the other variable group, These were .939, .796, .660, .468, and .579.