Match the research examples in 1-7 with the main threat to internal validity that it contains (a-g).
-A researcher is interested in the long-term effects of an election on the political attitudes of voters. Prior to the election, the views of 100 voters are assessed. Afterward, the researcher is able to reassess the attitudes of 74 voters.
A) Maturation
B) History or environmental events
C) Repeated testing
D) Instrumentation
E) Selection or assignment
F) Mortality or attrition
G) Statistical regression

Question

Quizplus · Accepted Answer

The main threat to internal validity in this example is mortality or attrition, as there was a significant loss of participants between the initial assessment and the follow-up assessment. This loss of participants may have resulted in a biased sample and affected the generalizability of the results.

Match the Research Examples in 1-7 with the Main Threat