Microsoft Excel Spreadsheets

We have created the following spreadsheets to assist in statistical
calculations. Each spreadsheet is "protected" so that it will only let
you type in certain cells so that you don't accidentally overwrite any
important formulas. If you wish to edit the formulas of the spreadsheet
you will first need to "unprotect" it by choosing **Tools -->
Protection --> Unprotect Sheet**. If you have created a
spreadsheet yourself and would like to make it available to others
through this website, or if you ever think you have found an error in
one of these spreadsheets, please send us an email at stat.help.questions@gmail.com .

General Statistics

Title |
Last Revision |
Comments |

Averaging Numbers | 2005-11-06 | Computes the unweighted or weighted average of a set of numbers. |

p-values
and Critical Values |
2006-04-06 |
Computes p-values and critical
values from correlations, t, Z, F, and chi-square statistics. |

Chi-square | 2005-11-06 | Computes the p-value
of a chi-square
statistic. |

Averaging Correlation Coefficients | 2005-11-06 | Computes the
weighted and unweighted average of a
collection of correlation coefficients using Fisher's r to Z
transform function. |

Comparing Correlation Coefficients | 2009-06-24 | Performs a statistical test of the difference between two correlation coefficients. |

Simple Slopes Plot for a 2-way Interaction | 2009-08-25 | Graphs the simple slopes for a 2-way interaction in regression analysis. |

Simple Slopes Plot for a 3-way Interaction | 2009-08-25 | Graphs the simple slopes for a 3-way interaction in regression analysis. |

Graph
of interaction between a categorical IV and a continuous IV |
2001-05-30 |
Graphs the simple slopes for
an interaction between a categorical IV (having up to 5 levels) and a
continuous IV. |

Logistic Coefficient to Odds Ratio | 2005-11-06 | Transforms a logistic regression coefficient to an odds ratio. |

Effect
sizes in ANOVA |
2006-07-11 |
Computes f, f-squared, and eta-squared for the
main and interaction effects in a two-way ANOVA. |

Multivariate p-values |
2006-10-27 | Computes p-values for one-sample and independent samples Hotelling T-squared as well as for Wilk's Lambda |

Graphing moderated mediation | 2009-09-17 | Graphs moderated mediation. |

Two-sample Z test for proportions | 2009-10-06 | Tests whether two proportions are significantly different from each other. |

Probability and odds converter | 2021-07-12 | Converts between odds, log odds, and probability. |

Rasch calculate probability correct | 2022-02-08 | Given a respondent theta and an item difficulty from an IRT analysis, this spreadsheet will calculate the probability that the respondent will get the item correct. It can also calculate the theta that a respondent would need to posess to have a given probability to get the item correct. |

Congruence coefficients for factor analysis | 2010-02-08 | This spreadsheet takes two sets of factor loadings and computes the congruence coefficient for each pair of factors. |

Meta-analysis

Title |
Last Revision |
Comments |

p-value from Cox CI | 2005-11-06 | Computes
a p-value from the bounds of a
confidence interval around a Cox regression coefficient. |

r to d & d to r | 2005-11-06 | Transforms
either a correlation coefficient (r)
to a standardized mean difference effect size (d) or transforms
a standardized mean difference effect size to a correlation coefficient. |

Odds Ratio to r | 2005-11-06 | Computes a correlation coefficient from an odds ratio. |

p to t | 2005-11-06 | Computes
a t statistic from a p-value. |

Statistics to interpret d | 2008-10-08 | Computes
U1, U2, U3, BESD, and CL from d based on Cohen (1977), Rosenthal & Rubin (1982), & McGraw & Wong (1992) |

Moderator Contrasts | 2005-11-06 | Tests a contrast of the means from a categorical moderator variable. |

Effect Size Corrections | 2005-11-06 | Converts
g to d and r to Zr.
Also provides the variances of these statistics. |

Fail Safe N | 2005-11-06 | Computes the fail safe N based on Rosenthal (1979). |

Meta-analytic Descriptives | 2005-11-06 | Computes the unweighted mean effect size, weighted mean effect size, variance of the weighted mean effect size, and the heterogeneity statistic. |

Continuous Moderator | 2005-11-06 | Tests the effect of a continuous moderator on an effect size. This spreadsheet requires that you first perform a weighted regression analysis predicting the effect size from the moderator. |

Calculating g and d | 2009-08-11 |
Calculates uncorrected (g) and corrected (d)
effect sizes as well as the variance for d. |

Calculating overall mean and SD | 2007-11-03 | Calculates the overall mean and standard deviation of a distribution when you provide the means and standard deviations from a set of subgroups |

Converting effect sizes | 2012-06-19 | Converts effect sizes (r, d, f, odds ratio, eta sqaured) |

d to distributions | 2008-10-08 | Takes d statistics and graphs the underlying distribution |

Other Useful Spreadsheets

Title |
Last
Revision |
Comments |

Double Data Entry | 2006-09-19 | Spreadsheet that highlights double data entry errors. |

Web Survey Generator | 2006-10-20 |
Generates the HTML necessary to
administer a Likert scale survey over the Internet. |