| Term | Definition |
| Meta-Analysis | A research procedure that uses statistical techniques to synthesize the results of prior independently conducted studies. |
| Mixed method | Refers to a study that combines qualitative and quantitative techniques and/or data anaylsis within different phases of the research process. |
| Oral history | A form of historical research in which individuals' spoken words and testimonies about the past are recorded. |
| Phenomenological | Research that describes the meanings or essence of a lived experience. |
| Policy analysis | Research to investigate and formulate policies and programs. |
| Prediction study | Research in which behaviors or skills are predicted by one or several variables. |
| Qualitative research | a type of research that refers to in-depth study using face-to-face or observation techniques to collect data from people in their natural settings. |
| Quantitative research | A research paradigm in which objective data are gathered and analyzed numerically. |
| Quasi-experimental design | Research designs in which there is no random assignment of subjects. |
| Replication | A study that duplicates the findings of a prior study using different participants, settings, or techniques. |
| Survey research | The use of a questionnaire or interview to assess the current opinions, beliefs, and attitudes of members of a known population. |