Participants who are subjected to all of the experimental procedures except the experimental manipulation are part of a(n) ____ group.
a. rating
b. experimental
c. sample
d. control
Question 2
Megumi is running an experiment on the impact of noise level on subsequent aggressive behavior. In one condition, participants experience a loud, annoying noise while trying to complete a task, and then are given a chance later to give another ostensible participant a noise blast, too. In the other condition, the participants do not experience the noise while trying to complete their task. After the study has been conducted, Megumi realizes that the loud room was lit more brightly than the quiet room. This difference in the level of light is an example of a
a. confound.
b. control group.
c. threat to external validity.
d. subject variable.
The experimental approach used by Masui and Markert to identify cyclin and cyclin-dependent kinase (
Experimental evidence of the effect of allelochemicals on plant production.
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
Procedures and Diagnostic Tests Related to the Integumentary System
Procedures and Diagnostic Tests Related to the Endocrine System
Diagnostic Imaging Procedures and Conditions Diagnosed or Treated