Homework Help: psychology

Posted by SHERRY on Wednesday, September 12, 2012 at 7:54pm.

Aresearcher is studying people of normal weight and obese individuals.She wants to know how the time of day affects hunger feelings in these two groups. when, during the experiment, the researcher looks at her watch, she has introduced what into the research study?

psychology - sherry, Tuesday, November 13, 2012 at 2:33pm
She has introduced time in her study.
psychology - kaye, Tuesday, April 30, 2013 at 11:55pm
i think it is "d"

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