EVIDENCE PHYSICAL THERAPY TYPES OF ERROR IN HYPOTHESIS TESTING WHAT IS HYPOTHESIS ? A specific, testable prediction Hypothesis = Assumptions ● ● ● ● It describes in a concrete term, what you expect will happen in a certain circumstances. Should be measurable Should be clear and understandable Should be testable Hypothesis Null Hypothesis Alternative Hypothesis It states that there is no difference between two variables Alternative hypothesis It states that there is difference between two variables , indicates there is Null hypothesis indicates there is no relationship between two variable ● an absolute relationship between two variable Errors in statistical decision-making ● Using hypothesis testing you can make decisions about whether your data support or refute your research predictions with null and alternative hypothesis. ● Hypothesis testing starts with the assumption of no difference between groups or no relation between two variables in the population-------------- this is null hypothesis ● It's alway paired with alternate hypothesis; which is your research prediction of an actual difference between group or a true relationship between variables Error and Chance Error: Error is false or mistaken result obtained in the study or experiment. Random error: Systematic error: ● Just as it says this error is random and not connected in any way to the methodology ● This type of error often ha a recognizable sources,either relat ...
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