Health Sciences 2801A/B Lecture Notes - Lecture 2: Null Hypothesis, Operational Definition, Statistical Inference
9 Apr 2020
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Document Summary
The first step in research should be to pose a question that is of interest. Should be specific enough to be feasible, but general enough to be meaningful/useful: clinical experience, theory, unanswered questions in professional literature. Four general research objectives: evaluation of measurement tools, descriptive, exploratory, comparative. Important questions to ask to form a research question. Important to know what researchers have found in the past to build research off of, and make sure. The importance of context it hasn"t been done before: literature searches, conference presentations, opinions of colleagues. Alternate hypothesis: researcher"s true expectation of results. Null hypothesis: comparison statement for research hypothesis. Since you are always testing your alternate hypothesis against the null hypothesis, your: nothing has happened, no relationship exists, no change has occurred proposed effect is demonstrated when the null hypothesis is rejected . Syllogistic logic true, the conclusion is true. When the premises are true, the conclusion must be true certain pre-existing conditions.
