Common Situational Factors That Are Potential Sources of Measurement Error

Multiple Choice

Common situational factors that are potential sources of measurement error include

A) factors such as a person's mood, fatigue and willingness to participate
B) variations in the environment such as time of day, temperature, presence of family members
C) variations in how the questions are administered, such as by phone or through e-mail
D) the degree of ambiguity and difficulty of the questions and the ability of respondents to answer