Examlex
Which of the following is a group of four muscles in the anterior thigh?
Treatment Group
In experimental research, a group of subjects who receive the treatment or intervention under study.
Placebo Group
A control group in an experiment that receives an inert treatment or substance (placebo) to compare against the effects of the active treatment on the experimental group.
Independent Random Samples
This term describes a statistical method in which each member of a set has an equal probability of being chosen, and the selection of one member is made without influencing the selection of any other member.
Significance Level
The threshold at which researchers decide whether an effect or result observed in data is statistically significant, commonly set at 0.05 or 5%.
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