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Calculators

Download free research calculators

There are several Excel-based calculators available for free download in Research Engineer.

​Click on a button below to continue.

Download G*Power to calculate the needed sample size for chi-square, Mann-Whitney U, independent samples t-test, one-way ANOVA, McNemar's test, Wilcoxon, repeated-measures t-test, repeated-measures ANOVA, Pearson's r correlation, and the point-biserial correlation.
Sample Size Calculator
Free Excel-based calculator for diagnostic testing calculations like sensitivity, specificity, Youden index, positive predictive value (PPV), negative predictive value (NPV), and total diagnostic accuracy.
Diagnostic Testing Calculator

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Statistician For Hire

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DO YOU NEED TO HIRE A STATISTICIAN?

Eric Heidel, Ph.D. will provide statistical consulting for your research study at $100/hour. Secure checkout is available with PayPal, Stripe, Venmo, and Zelle.

  • Statistical Analysis
  • Sample Size Calculations
  • Diagnostic Testing and Epidemiological Calculations
  • Psychometrics

Contact Dr. Eric Heidel
[email protected]
(865) 742-7731

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