Research Methods
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Research Methods
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1. Assigning participants to experimental and control conditions by chance - thus minimizing preexisting differences between those assigned to different groups.

2. Any selection method that results in subset of the population (sample) that is not representative - and/or not random

3. Research in which the same people are re-studied and re-tested over a long period

4. When a specific word used in a question affects how respondents answer the question or the order of the questions

5. Measuring device or procedure designed to measure psychology-related variables. A measurement that results in a score or result that is standardized

6. Data exists in categories that are ordered but differences cannot be determined or they are meaningless. (Example: 1st - 2nd - 3rd)

7. Variable that may change in response to manipulations of the IV (what is measured)

8. Subset of a population in which every element in the population has an equal chance of being selected

9. Results of experiment are SIGNIFICANT - they are not likely caused by chance

10. Measures whether a test looks like it tests what it is supposed to test as determined by a quick look or evaluation by a non expert

11. Arithmetic average of a distribution -

12. Research project designed to discover degree to which two variables are related to each other

13. Difference between highest and lowest scores in a distribution.

14. Tendency to give socially approved answers to questions about oneself.

15. Descriptive research that involves observing and recording behavior without trying to manipulate and control the situation.

16. In a normal distribution it tells you how far a number is above or below mean in terms of standard deviations.

17. People of different ages are compared to one another at a single point in time

18. Giving participants in a research study a complete explanation of the study after the study is completed needed for deception

19. A type of reliability - where different versions of same instrument are used and scores are compared

20. Procedure for statistically combining results of many different research studies

21. Association between increases in one variable and decreases in another

22. Research method in which info is obtained by asking many individuals a fixed set of questions

23. Most frequently occurring score(s) in a distribution.

24. Experimental factor that is manipulated; variable whose effect is being studied.

25. Condition of experiment that contrasts with experimental condition and serves as a comparison for evaluating the effect of the treatment.

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