Is a reduction in the number of research participants as some drop out of the study over time. attrition single blinding generalizability experimenter bias

Attrition

Explanation:

Attrition refers to the participants leaving the research study due to different reasons. Here, it must be clarified that attrition happens in almost every research. Also, attrition happens only when the participants leave themselves and not when they are removed by the researchers. Also, attrition leads to attrition bias which must be considered in research when participants leave leading to attrition.

Attrition is a reduction in the number of research participants as some drop out of the study over time. attrition single blinding generalizability experimenter bias

answer; i believe the correct answer is (a) the correlation between the cause variable and outcome variable is zero;

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