bliop.blogg.se

For example, if you are comparing men and women at three time points, there are two ways to organize the data:

Two ways to enter the data Before entering data, choose which grouping variable is defined by the rows, and which is defined by the columns. From the Welcome or New table dialog, choose the Grouped tab to set up the right kind of table. Each data set (column) represents a different level of one factor, and each row represents a different level of the other factor. Instead, use rows and columns to designate the different groups (levels) of each factor. In this example, drug treatment is one factor and gender is the other.Įntering two-way ANOVA data Groups are defined by rows and columns Prism organizes data for two-way ANOVA differently than do most other programs. Response to three different drugs in both men and women. For example, you might measure aįile://C:\Documents and Settings\jmpf\Configuración local\Temp\~hhEFC4.htm Two-way ANOVA, also called two-factor ANOVA, determines how a response is affected by two factors. Is the response affected by drug? By gender? Are the two intertwined? These are the kinds of questions that two-way ANOVA answers.Ĭopyright (c) 2007 GraphPad Software Inc. You measured a response to three different drugs in both men and women.