The nurse researcher has identified that it will be very difficult to control how busy the nursing unit is on days that study data are to be collected and decides not to try to control for this variable
What kind of variable does this situation describe? 1. Independent.
2. Extraneous.
3. Dependent.
4. Empirical.
2
Rationale 1: Independent variables are those thought to "cause" or influence the dependent variable.
Rationale 2: Extraneous variables are those over which the researcher either has no control or chooses not to exercise control.
Rationale 3: Dependent variables are those thought to be the "effect" or the variable influenced by the manipulation of the independent variable.
Rationale 4: Empirical is not a type of variable.
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