A Synthesis Research of Deductive Methods: Meta-Analysis

Abstract

The objectives of this study were to 1) to investigate the characteristics, content, and methodology of studies on teaching effectiveness in terms of publications and researchers, and 2) examine the impact size of educational research using deductive learning management concepts on learners' learning outcomes. In the study, there were two sample groups: the experimental group and the control group. The experimental group consisted of seven studies that fulfilled the requirements for selection and were published between 2009 and 2019.The experimental research has a research quality score of 3.00 or above, and it gathered information using the Nonglak Wiratchai (1987) research quality assessment form, which documented the summary of the research report and synthesized it using the Glass technique. The influence size was 8 values, and the data were analyzed by descriptive statistics.  The research findings were: 1) The research characteristics on the teaching effectiveness were synthesized into 3 aspects as follows: research characteristics, publication and researcher during the year 2009-2019, the institute which produced the research the most is Mahasarakham University in 71.43 percent. The fields which were studied the most is curriculum and teaching fields in 85.71 percent and the most type of research was master's thesis in 85.71 percent. The content of the research found that the most research was about mathematics in 42.86 percent. The level of the sample that was used in the research the most was the 2nd tier (Primary school), 3rd tier (Secondary School), and 4th tier (High School) in 28.57% and the topic which the research studied the most was about learning management in 100 percent and in terms of research methodology, it was found that the most used form of research was experimental research in 100.00 percent. The most used sampling is random sampling in 85.72 percent, the random method was used the most including cluster random sampling in 71.43 percent, and the assumptions used in the research the most were directional assumptions in 85.71 percent. Finally, the study which used the concept of deductive learning: Deductive Methods have an influence on learners' learning outcomes.The mean effect size was 0.294 and the standard deviation was 1.274.