Across
- 2. A type of validity concerning whether the study was systematic and controlled
- 6. A type of validity concerning whether the finding has real world utility
- 8. Examine the physiological processes of the brain and their influence on physical activity
- 9. Based on observation
Down
- 1. Reflection
- 3. Selecting isolated variables that are of a crucial interest to study
- 4. Examination of how the manipulation of a variable(s) affects changes in others
- 5. Observing without changing the environment
- 7. Set of interrelated facts that present a systematic view