Research methods key terms

1. People who are members of the target population and are willing and available to take part in an experiment. (11, 6)
7. A statistic calculated by adding al the scores in a set of values and dividing the total by the number of values in the set. (4)
10. The difference between the lowest and highest value in a set of values. (5)

2. The large group of people the researcher wishes to study. (6, 10)
3. Points of concern about what is morally right. (7, 6)
4. When every member of the target population has an equal chance of being selected for the sample. (6, 6)
5. A testable statement about the relationship between two variables. (10)
6. A variable that is not the IV but could still affect the DV if its not controlled (10, 8)
8. A method of research in which all variables other than the independent variable and dependent are controlled. This allows the researcher to identify a cause and effect relationship between the IV and the DV. (10)
9. The middle value in a set of values when the values have been arranged in ascending order. (6)

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