Crossword

4. any observation made in a laboratory experiment.
7. a relationship between two variables that move in opposite directions.
10. moral principles that govern a person's behaviour or the conducting of an activity.
12. a process or record of research into the development of a particular person, group.
16. the group of individuals that the intervention intends to conduct research.
17. a tendency to believe that some people, ideas, etc.
18. a small part or quantity intended to show what the whole is like.
19. make an exact copy of; reproduce.
20. arises in any research study in which participants choose.

1. a mutual relationship or connection between two or more things.
2. a supposition or proposed explanation made on the basis of limited evidence.
3. an element, feature, or factor that is liable to vary or change.
5. An inactive substance or other intervention that looks the same as
6. a qualitative research method where you record the behaviors of your research subjects.
8. a scientific procedure undertaken to make a discovery.
9. a relationship between two variables that tend to move in the same direction.
11. researchers divide subjects into subgroups called strata.
13. a part of the sampling technique in which each sample.
14. look closely at or examine (someone or something).
15. build or make
21. a research design in which participants are repeatedly assessed.