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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
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An investigator wants to study the effect of gender on attitude towards Internal Evaluation by using two groups of students.
The nature of this study would be :
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Eduncle Best Answer
Causal-comparative research attempts to determine the cause or consequences of differences that already exist between or among groups of individuals. The basic causal-comparative approach is to begin with a noted difference between two groups and then to look for possible causes for, or consequences of, this difference. There are three types of causal-comparative research (exploration of effects, exploration of causes, exploration of consequences), which differ in their purposes and structure. A major threat to the internal validity of a causal-comparative study is the possibility of a subject selection bias. The chief procedures that a researcher can use to reduce this threat include matching subjects on a related variable or creating homogeneous subgroups, and the technique of statistical matching. Other threats to internal validity in causal-comparative studies include location, instrumentation, and loss of subjects. In addition, type 3 studies are subject to implementation, history, maturation, attitude of subjects, regression, and testing threats.