What is the purpose of correlational research? involves the systematic investigation of relationships between or among variables The focus of correlational research is on describing relationships, not testing the effectiveness of interventions researchers measure selected variables in a sample and then use correlational statistics to determine the relationships among the study variables. Using correlational analysis, the researcher is able to determine the degree or strength and type (positive or negative) of a relationship between two variables. The strength of a relationship varies, ranging from −1 (perfect negative correlation) to +1 (perfect positive correlation), with 0 indicating no relationship A positive relationship indicates that the variables vary together; that is, both variables increase or decrease together. A negative relationship indicates that the variables vary in opposite directions; thus as one variable increases, the other will decrease Why are quasi-experimental studies conducted? to examine causal relationships or determine the effect of one variable on another. Thus these studies involve implementing a treatment or intervention and examining the effects of this intervention using selected methods of measurement Quasi-experimental studies differ from experimental studies by the level of control achieved by the researcher. These studies usually lack a certain amount of control over the manipulation of the treatment, management of the setting, and/or selection of the subjects. Why and in what settings are experimental studies conducted? Experimental studies are conducted in highly controlled settings, using a highly structured design to determine the effect of one or more independent variables on one or more dependent variables ©2015 UTA School of Nursing 2
The problems formulated for qualitative research identifies areas of concern that require investigation to gain new insights, expand understanding, and improve comprehension of the whole What are the four points to evaluate when determining the significance of a study problem and purpose? Briefly describe them. ( 1) influences nursing practice Studies that address clinical concerns and generate findings to improve nursing practice are considered significant. These types of practice-focused studies often have the potential to improve the quality of nursing care provided, promote healthy patient and family outcomes, decrease morbidity and mortality, and reduce the costs of care. The ultimate goal is providing evidence-based practice (EBP) so that nursing care is based on the most current research (2) builds on previous research A significant study problem and purpose are based on previous research. In a research article, the introduction and literature review sections include relevant studies that provide a basis for the current study. Often, a summary of the current literature indicates what is known and not known in the area being studied. The gaps in the current knowledge base provide support for and document the significance of the study's purpose.
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- Fall '16
- Denise Cauble
- Nursing, UTA School of Nursing