Answer:
Attrition bias
Explanation:
When conducting an experiment, it can happens that certain participants drop out before the experiment/study comes to an end. When this happens, we say that the study might have attrition bias.
This bias is also known as sample attrition and it may affect the external and the internal validity of a trial.
In this example, <u>6 people dropped out before the last session of the study, </u>therefore, we can say that this study might have attrition bias.
A. independent is sleep because thats the value that can be changed while dependent is memory.
It would be a Muscle Stain
<span>You should provide the answer choices next time. Luckily, I know this from a past health test. It would be that Daniel notices his asthma symptoms occur more often during cross country practice. </span>
You need to give more info i can’t tell what the whole question is