According to the encouraging of the Ministry of Education, it was found that the teachers conducted classroom action research
widely in Thailand. But, the number of research studies or classroom action research was not concerned indicators of research
quality. The purpose of this research is to develop standards, factors and indicators for evaluating the quality of classroom action
research by using Delphi Technique and Connoisseurship Model including two phases. The first phase, Document analysis was
performed to synthesize the tentative standards, factors, and indicators for evaluating the quality of classroom action research.
The second phase, the appropriateness of tentative standards, factors, and indicators for evaluating the quality of classroom action
research was investigated. The key informants comprised 9 scholars who involved in classroom action research. Two of rating
scale questionnaires were used as research tools. Statistical techniques used in the analysis of the data obtained included mean
and inter-quartile range. For research findings, the standards, factors, and indicators for evaluating the quality of classroom
action research were obtained including 4 standards, 18 factors, and 57 indicators. Standard of researcher’s basic knowledge has
4 factors 10 indicators. Standard of research process has 10 factors 32 indicators. Standard of research value has 3 factors 11
indicators. Standard of researcher’s ethics, morality, and code of conduct has 1 factor 4 indicators.