A psychologist wishes to ensure that both his experimental group and control group are as similar as possible (e.g., having equal numbers of males and females). He can achieve this by using:

Random assignment is a procedure used in experimental research, often in psychology, to ensure that both the control and the expedrimental group are as similar as possible. The basic principle of this procedure is that every research participant must have the same opportunity to be asigned to either one of both groups. Therefore, the research participants are randomly assigned to both groups.

Random assignment should not be confused with random sampling, while random sampling is used to select the sample that will represent the entire population, in random assignment the sample has already been chosen and will then be distributed.

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A random assignment is a random placement is an experimental technique that is where the subjects are kept as treated vs the control group.

Here each participant and subject has equal chances of being selected.

The assignment binds and randomly controls the design of the experiment. It also helps to ensure that the results are not deceptive.

Learn more about the ensure that both his experimental group.

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