When to use different statistical tests
[DOC File]How to Critically Analyse Research
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An appropriate statistical test to compare the curves for different data sets would be the logrank test (also call Mantel-Cox test). A good discussion of the test can be found in Pyke and Thompson (Pyke, David A., and John N. Thompson. 1986. Statistical analysis of survival and removal rate experiments. Ecology 67: 240-245.).
[DOC File]STATS CHEAT SHEET
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Different statistical tests are used for comparison and correlation. The outcomes―If there is only one outcome measured that compares two different interventions, a simple statistical test (e.g., a . t-test) will probably be sufficient. However, with a larger number of outcomes involving different types of variables, more complex statistical ...
[DOC File]SPSS & Hypothesis Testing
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Use the sample Standard Deviation to predict Population (Equations: df = N – 1. EXAMPLE: PAIRED SAMPLES T-TEST. Paired Samples T-Tests: Are also known as Dependent or Matched T-Tests. Do not utilize population parameters, rather are a comparison of scores from a …
[DOC File]1
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It is like running two liver function tests and diagnosing a problem if either one of them is positive. A multirule QC procedure uses two or more statistical test, (control rules) to evaluate the QC data, and then rejects a run if any one of these statistical tests is positive. Other common multirules used for analyzing 3 different controls ...
[DOC File]One Sample T-Test
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: Different statistical tests can be used to address different questions. However, different statistical tests can also be used to address the same question. Did the researchers use the correct (i.e., most powerful, most precise) statistical test to investigate their hypotheses?
[DOC File]Statistical Tests
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To use this tool properly, you must have a statistics background; otherwise, chances are very good that an incorrect test can be applied to a given set of data. Hypothesis testing is the formal statistical technique of collecting data to answer questions through the use of a statistical model.
[DOC File]Data Analysis and Reporting
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We note that a larger sample size or a one-tailed test might/would give different results. Paired Samples T-Test. The Paired-Samples T Test procedure compares the means of two variables for a single group. The procedure computes the differences between values of the two variables for each case and tests whether the average differs from 0. Example.
Statistical Tests — When to use Which ? | by vibhor nigam | Toward…
The variances can be up to 4 times different from each other, but no more than that, and still be considered “equal.” To find HOV, you divide the larger variance by the smaller variance. Known population mean. Known population standard deviation. Title: Statistical Tests Author: Ratlab #3, Psychology Last modified by: Department of ...
[DOCX File]GUIDELINES TO STRUCTURED ABSTRACT WORKSHEET
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Inferential data analyses use statistical tests to draw tentative conclusions about the relationship between variables; conclusions are drawn in the form of probability statements, not absolute proof. The evaluation question is stated in the form of hypotheses. Null hypotheses holds that there is no observed difference between the variables.
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