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SW licensure II

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
independent variable   show
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show variable who's status depends on the status of another variable (DV is out the outcome of the treatment)  
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show used to ensure that each "strata" or population characteristic is represented in the samle (gender, age, education, socioeconomic status, ethnic, etc.)  
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cluster sampling   show
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quasi-experimental research   show
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show after the fact study to assess effects of IV afte rit has occurred. cannot randomly assign subjects to treatment groups  
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extraneous variable   show
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show analysis of covariance - used to remove variability on DV due to extraneous variable  
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factorial design   show
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show measures the DV over time or across trials.  
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nominal scale   show
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show numbered categories, ranks. cannot tell difference between scores like interval  
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interval scale   show
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ratio scale   show
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null hypothesis   show
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show study involves nominal data (or data reported in terms of frequency) Ex compare the number of people who prefer one of four political candidates  
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Mann-Whitney U test   show
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show used for a single sample when a study only includes one group and the mean will be compared to a population mean  
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ANOVA   show
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