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Types of Research PE357
Types of Research Experimental vs. Nonexperimental –Cause-effect –Control over DV –Future-based
Quasi-Experimental Lack randomized control group or a control condition altogether Often prospective
Causal-Comparative Research (ex post facto) Seeks cause effect relations IV cannot be manipulated by the investigators
Descriptive Research Attempts to describe systematically, factually, and accurately specific characteristics of interest that exist Precedes experimental research Often uses grouping variables
Is Descriptive Research Qualitative? Often more systematic and standardized Larger sample sizes and not as in-depth Variables are predetermined Data analysis differences
Correlational Research Related to descriptive and causal comparative research Determines whether a relationship exists among variables or to make predictions No cause effect but it is necessary
Historical Research -Hard to categorize -Use of past to understand the present and future -Use of primary and secondary sources -Contains extensive methodology but generally ends with narrative
Qualitative Research -Relies on non-numerical data -Does not attempt control -Reality is constructed – no hypotheses or predetermined variables
Andrea M. Landis, PhD, RN UW LEAH
Chapter 2: Nonexperimental Research Approaches This multimedia product and its contents are protected under copyright law. The following are prohibited.
CAUSAL-COMPARATIVE RESEARCH LIYANA BT AHMAD AFIP
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