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0066. Which of the following could be said of sampling on the dependent variable?

1. It is creating a sampling frame that cannot be used to draw a random sample.
2. It is when we select our research subjects from among those displaying the trait or behavior we wish to explain.
3. It is making sure that all variables are represented in our sample.
4. It is general strategy for studying causality
5. It is research error in which we study cases drawn from one value of the outcome variable.

+ Solution and explanation

Sampling on the dependent variable is an error in research. It happens when we selected our research subjects from those that display the behavior in question (the dependent variable) rather than across categories of things we think might explain the outcome (the independent variables). (1) is nonsense; (2) fits; (3) is wrong; (4) is wrong; (5) fits. Hence, A.

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