A limitation of unobtrusive measures is that they
A) alter the meaning of the variable that is being studied.
B) are susceptible to response sets.
C) are influenced by the observer's presence.
D) have uncertain reliability.

Question

Quizplus · Accepted Answer

Unobtrusive measures, by definition, do not involve direct interaction with the subjects being studied, thus eliminating the influence of the observer's presence (C) and reducing susceptibility to response sets (B). They do not inherently alter the meaning of the variable being studied (A). However, because these measures rely on indirect means of gathering data, their reliability can be uncertain (D), as it may be difficult to ensure that the data accurately reflect the phenomena of interest.

A Limitation of Unobtrusive Measures Is That They