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In developing the national certification exam for counselors, the test developers wanted to assure adequate validity and reliability. For the following items, place the letter that represents the kind of validity or reliability described.
-In creating the test, they hypothesized that students who finished a master's degree in counseling would do significantly better than students who received a master's in psychology. Then, a study is conducted examining this hypothesis.
Correlation
A statistical measure that describes the extent to which two variables change together, but does not imply causation.
Correlational Study
A type of research design where a researcher examines the relationship between two or more variables without manipulating them, determining whether and how they are related.
Double-Blind Experiment
A study or experiment in which neither the participants nor the researchers know who is receiving a particular treatment, to prevent bias.
Representative Sample
A fraction of a population that reliably reflects the traits of the entire group.
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