Across
- 3. assignment Equal chance of being selected for study
- 4. post facto Topic chosen because of pre-existing condition
- 5. Each portion of population is studied at a different time
- 7. investigation To test a hypothesis
- 9. method 5 Step method of investigation
- 11. Over a long period of time
- 13. definition How the investigation will be measured
- 15. Testable question
- 16. Questions for research
- 17. Constraints on investigation
- 18. variable Measures outcome of study
Down
- 1. IF/THEN
- 2. Can be redone
- 5. study Determines relationships between variables
- 6. Observed in natural habitat
- 8. Pieces of information
- 10. variable Have unwanted influence
- 12. variable Changes independently
- 14. investigation Uses experience and observation for research