In a longitudinal study of 200 nursing school graduates, nurses who did not participate in the 3-year follow-up were compared to those who did. The appropriate statistical test would be the _____________ to assess for _____________ bias.

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The correct statistical test to compare nurses who did not participate in the 3-year follow-up to those who did is the Independent groups t-test. This test is used because the two groups (participants vs. non-participants) are independent of each other. The purpose of the comparison is to assess for attrition bias, which occurs when participants drop out of a longitudinal study, potentially leading to biased results if the dropouts differ significantly from those who remain.

In a Longitudinal Study of 200 Nursing School Graduates, Nurses