RESEARCH DESIGN
DIFFERENT RESEARCH DESIGNS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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requires greater number of participants.
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provides evidence concerning cause-effect relationships.
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measures dependent and independent variables.
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collects samples to generalize to populations.
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Detailed explanation-1: -The key difference between experimental and non-experimental research lies in the extent to which the environment is controlled and manipulated by the researcher. In experimental studies the researcher sets up the environment and carefully controls the variables s/he is interested in.
Detailed explanation-2: -The only method that will establish a cause-and-effect relationship is an experimental research design. A true experiment must feature a control group as one of the experimental groups, along with random sampling from the population and random assignment of the study subjects to the experimental groups.
Detailed explanation-3: -Experimental research, often called true experimentation, uses the scientific method to establish the cause-effect relationship among a group of variables that make up a study.