A retrospective baseline may be possible even though actual data was not recorded.

Name: A retrospective baseline may be possible even though actual data was not recorded.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

A retrospective baseline can be established by collecting and analyzing data based on recollections or estimates from individuals who have knowledge or experience related to the situation being studied. However, the accuracy and reliability of such data may be limited.

A Retrospective Baseline May Be Possible Even Though Actual Data