One-Way ANCOVA for Independent Samples. These units will perform an analysis of covariance for k independent samples, where the individual samples, A, B, etc., represent k quantitative or categorical levels of the independent variable; DV = the dependent variable of interest; and CV = the concomitant variable whose effects one wishes to bring under statistical control. The units in this first batch require the direct entry of data, item by item, and as they open you will be prompted to enter the size of the largest of your several samples.
[direct entry]  For k=2     For k=3     For k=4
The units in this second batch allow for the import of data from a spreadsheet via copy and paste procedures.
[data import]  For k=2     For k=3     For k=4

For k>4, there is a downloadable Excel spreadsheet available.

Two-Way Factorial ANCOVA for Independent Samples. These units will perform a factorial analysis of covariance for RxC independent samples, cross-tabulated according to two independent variables, A and B, where A is the row variable and B the column variable; DV = the dependent variable of interest; and CV = the concomitant variable whose effects one wishes to bring under statistical control. As the pages open, you will be prompted to enter the size of the largest of your several samples.
  For 2x2     For 2x3