Effect Size Calculator for Hierarchical Multiple RegressionEffect Size Calculator for Hierarchical Multiple Regression
R² for Full Model:
R² for Reduced Model:
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Use this calculator to estimate the Beta (Type II Error Rate) in your hierarchical multiple regression analysis. By inputting the number of predictors, effect size, sample size, desired power, and alpha level, you can understand the likelihood of failing to reject the null hypothesis when it is false. For critical decisions, verify results with professional…
This calculator will tell you the minimum sample size required for a hierarchical multiple regression analysis; i.e., the minimum sample size required for a significance test of the addition of a set of independent variables B to the model, over and above another set of independent variables A. The value returned by the calculator is…
Upper Incomplete Gamma Function CalculatorUpper Incomplete Gamma Function Calculator
Enter s (Shape Parameter):
Enter x (Lower Limit of Integration):
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Conditional Probability CalculatorConditional Probability Calculator
Select Operation:
Calculate P(A|B)
Calculate P(A ∩ B)
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Union Probability CalculatorUnion Probability Calculator
Select Calculation Type:
Calculate P(A ∪ B) using P(A), P(B), and P(A ∩ B)
Calculate P(A…
Critical F-value CalculatorCritical F-value Calculator
Degrees of Freedom (df₁ - Numerator):
Degrees of Freedom (df₂ - Denominator):
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F-Distribution CDF Calculator
F‑Distribution CDF Calculator
Calculate the cumulative probability…
Enter the Pearson correlation coefficient (r) and sample size (n) to compute the t-statistic and two-tailed p-value, helping you assess the significance of the observed correlation. Note: This is an approximation; for critical analyses, use professional statistical software.
Correlation p‑Value Calculator
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Binomial Confidence Interval Calculator
Calculate the confidence interval for a binomial proportion using the Wilson score method:
$$ \text{CI}=\frac{\hat{p}+\frac{z^2}{2n}\pm z\sqrt{\frac{\hat{p}(1-\hat{p})}{n}+\frac{z^2}{4n^2}}}{1+\frac{z^2}{n}}, $$
where \( \hat{p}=\frac{k}{n} \).
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