Explain the meaning and characteristics of experimental research. Describe how a researcher can control intervening variables in an experimental research.
Meaning and Characteristics of Experimental Research:
Experimental research is a scientific research method that involves the systematic manipulation of one or more independent variables to observe their effects on one or more dependent variables while controlling for extraneous variables. This approach is characterized by several key features:
1. Manipulation of Variables: In experimental research, the researcher deliberately manipulates one or more independent variables. The independent variable is the factor or condition believed to have an effect on the dependent variable, which is the outcome or response being measured.
2. Control Group: Experimental research typically includes a control group that serves as a baseline for comparison. The control group is not exposed to the experimental treatment or condition and is used to assess the natural or baseline behavior of the dependent variable.
3. Random Assignment: Participants are randomly assigned to either the experimental group (those receiving the treatment or manipulation) or the control group. Random assignment helps ensure that the groups are ______ _____ __________ ________ _______ _______ __________ ____ __________ ____ ______ ________.
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