Data collector characteristics may be a threat to internal validity if:
A) they are related to measurement of the dependent variable
B) they are related to the independent variable
C) more than one person collects the data in a study
D) all of the above

Question

Quizplus · Accepted Answer

Data collector characteristics can threaten internal validity if they are related to either the measurement of the dependent variable, the independent variable, or if multiple people collect data, potentially introducing variability in data collection methods.

Data Collector Characteristics May Be a Threat to Internal Validity