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Below is a list of examples that are typical of research conducted in behavioral science. For...

Below is a list of examples that are typical of research conducted in behavioral science. For the following list of examples, identify the dependent variable (DV) and independent variable (IV). Also, please identify the level of measurement (e.g., nominal, ordinal, interval, ratio) for each IV and DV.

A student tests whether time spent (in minutes) with a remedial tutor influences performance on a standardized exam (total points on the exam).

Independent Variable:

Level of Measurement (IV):

Dependent Variable:

    

Level of Measurement (DV):

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Answer #1

Independent Variable: Time spent with a remedial tutor (This variable is under the control of researcher and variations are made in this variable are to see how the dependent variable changes)

Level of Measurement (IV): Ratio (Time is ratio because it has a true 0 value)

Dependent Variable: Performance/points on a standardized exam (This is the variable of interest and is the one that changes with change in independent variable)

Level of Measurement (DV): Ratio (The points on exam have a meaningful 0 value)

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