Vocabulary

3. an educated guess
4. participants do not know whether they are in the experimental group or the control group
5. total group to be studied or described and from whom samples may be drawn
9. a type of question that prompts or encourages the desired answer
11. the group exposed to the treatment
13. an investigator manipulates one or more variables to observe the effect
14. any factor other than the I.V.
16. type of sample where each member of the population has an equal chance of selection
17. collecting data through human or animal participants
18. might produce an effect in an experiment
19. the group not exposed to the treatment

1. portion of the target population that is similar to the target population
2. both the participants and researchers are unaware of who is receiving the treatment
6. the experimental factor (treatment) that is manipulated
7. type of sample where subgroups are represented proportionally
8. a predisposition to a certain point of view despite what the facts suggest
10. collecting data by asking questions of people in a particular group
12. a substance or treatment that has no effect apart from a person’s belief in its effect
13. standards for proper and responsible behavior
15. the outcome factor