A nurse researcher should consider mortality a threat to the study's internal validity for which of these reasons?
A) There is concern that the intervention may have harmful effects on subjects.
B) Those who dropped out of the study may be different than those who remained in the study.
C) Those who participated in the study may have died as a result of being in the study.
D) There is concern that the design is inappropriate for the study question if a large number of participants drop out of a study.

Question

Quizplus · Accepted Answer

Mortality, in research terminology, refers to the dropout rate of participants from a study. When participants drop out, it can threaten the internal validity of the study because those who leave may have different characteristics or outcomes compared to those who remain, potentially biasing the results.

A Nurse Researcher Should Consider Mortality a Threat to the Study's