Using multiple measures of program achievement may not add to the validity of an evaluation if
A) the measures share the same biases.
B) all measures are based on interviews.
C) few measures have reliabilities exceeding .80.
D) objective data sources such as expert observers or artifacts were not used.

Question

Quizplus · Accepted Answer

If multiple measures share the same biases, using them will not add to the validity of the evaluation. This is because the biases will affect all measures and therefore, the results will not be accurate. It is important to have different sources of data to validate the findings of an evaluation. Objective data sources such as expert observers or artifacts should be used along with different types of measures to ensure the validity of the evaluation. Reliability is also important, but it is not the only factor that determines the validity of an evaluation. Therefore, option C is not relevant to the question. Option B is also not a valid answer as multiple measures may include other sources of data besides interviews.

Using Multiple Measures of Program Achievement May Not Add to the Validity