........ is"systematically conceptual structure of inter related elements in some schematic form"
1). Variable
2). Model
3). Concept
4). Facts
2. The difference between experimental research and historical research in the process of
3. The important purpose of survey method is-
5. The technique of regulating various variables in an experiment is called
6. Which one of the following is not reflecting the advantage of conference?
9. This type of validity refers to the ability to generalize the results of a study across settings.