"You Are Researching the Incidence of Childcare Related Employee Absences

Multiple Choice

"You are researching the incidence of childcare related employee absences in a firm. The secondary data set you have decided to use does not state the cause of employee absence where a doctor's note is not required." What problem does this cause your research?

A) You cannot tell which absences are for childcare related reasons
B) You have measurement invalidity
C) You cannot meet your research objectives
D) All of the above