Homogeneity of Variance
Homogeneity of variance means that the populations represented by the groups in a statistical comparison have approximately equal variances. In simple terms,…
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G*Power Analysis
G*Power analysis helps nursing researchers determine the sample size, statistical power, detectable effect size, or significance criterion required for a planned statistical…
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Power Analysis for Nursing Research and Dissertations
Power analysis helps nursing researchers answer a practical question before collecting data: How much information does this study need to have a…
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John Hattie Effect Size: Meaning of the 0.40 Hinge Point
The phrase John Hattie effect size often appears beside charts that rank educational influences, yet readers may not know what the values…
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Cohen’s d Effect Size
Nursing students frequently report a t test and p value without explaining the magnitude of the observed difference. A statistically significant result…
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Likert Scale Analysis
Nursing students frequently collect questionnaire responses using 4-point, 5-point, or 7-point options, yet the analysis often becomes confusing once data collection ends.…
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Survival Analysis in Nursing Research
Many nursing students can explain a t-test, chi-square test, ANOVA, correlation, or regression model, but survival analysis becomes confusing because the research…
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How to Do Correlation Analysis in Excel for Nursing Research
Introduction Many nursing students have their data in Excel and want to know whether two variables are related. You may have stress…
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Spearman Correlation Analysis in Nursing Research
Introduction Many nursing students collect ordinal, ranked, skewed, Likert-scale, or non-normal data and then wonder whether Pearson correlation is still appropriate. You…
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Pearson Correlation Analysis
Introduction Many nursing students know they need to examine a relationship between two variables, but they are unsure whether Pearson correlation analysis…
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