Factor by Grouping. -

question 34

Multiple Choice

Factor by grouping.
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Definitions:

Sampling Bias

A statistical bias that occurs when a sample is collected in such a way that some members of the intended population are less likely to be included than others, resulting in a non-representative sample.

Double Blind Procedure

A double-blind procedure is a research method in which both the participants and the researchers are unaware of who has been assigned to the control or experimental group, reducing bias.

Placebo Effect

A phenomenon wherein a patient's symptoms can improve after receiving a treatment with no therapeutic value, purely because of the individual's belief in the treatment's efficacy.

Experimenter Bias

A type of research bias where the expectations or preferences of the researcher influence the outcomes of the study.