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-333375-47625NonparametricParametricNonparametricNoNoNoYesYesNoYesYesParametricTwo GroupsNonparametricParametricNoYesDifferencesRelationshipsMore than two groupsMeansOrdinal, Interval, RatioParametric Assumptions:1. Independent, unbiased samples2. Data normally distributed3. Equal variancesType of data?Type of questionChi-square tests one and two sampleDo you have a true predictor variable?Differences between what?Correlation AnalysisRegression analysisPearson’s rSpearman’s Rank CorrelationHow many treatment groups? Parametric assumptions satisfied?Data transform worked?Data transform worked?Parametric assumptions satisfied?Student’s unpaired t-test, Paired t-testANOVAKruskal-Wallis TestNominal0NonparametricParametricNonparametricNoNoNoYesYesNoYesYesParametricTwo GroupsNonparametricParametricNoYesDifferencesRelationshipsMore than two groupsMeansOrdinal, Interval, RatioParametric Assumptions:1. Independent, unbiased samples2. Data normally distributed3. Equal variancesType of data?Type of questionChi-square tests one and two sampleDo you have a true predictor variable?Differences between what?Correlation AnalysisRegression analysisPearson’s rSpearman’s Rank CorrelationHow many treatment groups? Parametric assumptions satisfied?Data transform worked?Data transform worked?Parametric assumptions satisfied?Student’s unpaired t-test, Paired t-testANOVAKruskal-Wallis TestNominal209550-495300Flow Chart for Selecting Commonly Used Statistical TestsFlow Chart for Selecting Commonly Used Statistical Tests1771650118745Mann-Whitney U or Wilcoxon Rank sums test0Mann-Whitney U or Wilcoxon Rank sums test-523875765810 REFERENCESGerwien R. (2014). Painless Guide to Statistics. Department of Biology, Bates College, Lewiston, ME. Retrieved 10-22-2014. , L. and J.F. Downhower. 1988. Analyses in Behavioral Ecology. Sinauer Press. Sunderland MA.Lehner, P. 1979. Handbook of Ethological Methods. Garland Press, NY.0 REFERENCESGerwien R. (2014). Painless Guide to Statistics. Department of Biology, Bates College, Lewiston, ME. Retrieved 10-22-2014. , L. and J.F. Downhower. 1988. Analyses in Behavioral Ecology. Sinauer Press. Sunderland MA.Lehner, P. 1979. Handbook of Ethological Methods. Garland Press, NY. ................
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