Examlex
Sterilization,in which the sperm is surgically prevented from reaching the egg,is accomplished by
Psychological Research
The scientific study of human behavior, emotions, and mental processes through systematic observation, experimentation, and analysis.
Double-Blind Study
An experiment in which neither the people being studied nor the individuals running the study know who is in the control group and who is in the experimental group until after the results are tallied.
Observational Study
A research method where the researcher observes subjects in their natural environment without intervention.
Systematically Watches
The act of observing or monitoring something in a methodical and organized manner.
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