Across
- 3. sample a survey population selected by chance, which fairly represents the general population
- 4. in-depth study of a single group to reveal some universal
- 7. research technique for acquiring data about the attitudes or behaviors of a group of people, usually by asking questions of a representative; random sample
- 9. sample a sample drawn in such a way the known subgroups within a population are represented in proportion to their numbers in the general population
- 12. controlled scientific procedure to determined whether certain variables manipulated by the researcher have an effect on other variables
- 13. to repeat a research study, usually with different situations to confirm results of the original studies
- 14. a representative segment of a tais rget population
- 15. explanatory variable which is not directly observable
- 17. relationship between variables in which one variable increases as the other variable also increases
- 18. study of behavior in naturally occurring situations without manipulation or control on the part of the observer
- 19. observation study of behavior in a controlled situation
- 20. method method of research that looks at different age groups at the same time in order to understand the changes that occur during the life span
Down
- 1. participants who receive the treatment
- 2. unpleasant stimulus between two variables in which one variable increases as the other decreases
- 5. factor that is manipulated by the researcher to determine its effect on another variable
- 6. prediction about behavior that is tested
- 8. in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair
- 10. population the total group to be studied or described and from whom samples may be drawn
- 11. relationship between variables
- 16. concept that people who volunteer to to participate in research studies often differ from those who do not volunteer