ANY-maze Help > Using ANY-maze > Viewing and analysing results > Performing statistical analysis

Performing statistical analysis

Essentially, ANY-maze statistical analysis is designed to detect differences between groups of animals. To this end, it includes one- and two-way ANOVAs (for both between and within subject designs), some non-parametric tests, and a range of post-hoc tests. Full details are given below.

  
 •Specifying the analysis to perform 
 •Viewing the results 
 •Statistical tests performed by ANY-maze  

Specifying the analysis to perform

To run statistical analysis, perform the following steps:

 1.Switch to the Results page. 
 2.If it's not already selected, then in the Report style section of the ribbon bar select the Statistical option. 
 3.If the report settings page is not already shown, click the Edit report settings button. 
 4.In the list titled Dependent variables to analyse, select the measure or measures you would like to analyse. 
 5.In the drop-down list titled Select the 1st independent variable, select the measure you want to use as the independent variable in the analysis. 
 6.If you want to perform a two-way analysis, then select the 2nd independent variable in the drop-down list titled Select the 2nd independent variable, otherwise leave this set to - None -. 
 7.Set the type of analysis to perform to either parametric or non-parametric. 
 8.Optionally select the post-hoc test to use. ANY-maze will only perform this test if there is a statistically significant difference between the groups. 
 9.Click View the report button - ANY-maze will analyse the results and show the report.  

For full details of all the options available, refer to the following topic: Performing statistical analysis.

Viewing the results

The results of statistical analysis are presented in an identical format to Text reports, except that the analysis is shown below the table showing the group means and data - see figure 1.

  

  

Figure 1. The format used to display the results of statistical analysis in ANY-maze.

If you want to go back to the report settings page to alter the analysis, perhaps to change the post-hoc test or to view the results for a different dependent variable, then you simply need to click Edit report settings button in the ribbon bar.

As you may know, you can easily alter the style of a report (by clicking an option in the Report style section of the ribbon bar) to view the same data in a different way. For example, if you are viewing data as a text report, then clicking the Graph style will show the same data as a graph. Well, this also applies to viewing statistical analysis - so if you are viewing a graph, you can simply click the Statistical style to view analysis of the graphed data.

Statistical tests performed by ANY-maze

ANY-maze includes a range of different statistical tests for analysing an experiment's data. As the system already knows certain things about the variables to analyse, such as whether they represent nominal data, whether there are repeated measures, etc., it is able to choose an appropriate parametric or non-parametric test for itself - full details are given below:

  

Analysis of nominal data

ANY-maze can perform one-way (but not two-way) analysis of nominal data, such as the first zone entered in a test. To do this, it uses the tests shown in table 1. If the result of this analysis is significant (by default, p ≤ 0.05) and you've requested post-hoc analysis, then the system will employ the tests shown in table 2.

  

  

Table 1. Tests used to perform one-way analysis of nominal data in ANY-maze. *Strictly speaking, this should be analysed using the McNemar test, but the Cochran Q test yields the same answer.

  

  

Table 2. Tests used to perform post-hoc analysis of nominal data in ANY-maze.

  

Analysis of continuous data

ANY-maze can perform one-way parametric or non-parametric analysis of continuous data using the tests shown in table 3. For two-way analysis, the tests used are shown in table 4. If the result of this analysis is significant (by default, p ≤ 0.05) and you've requested post-hoc analysis, then the system will employ the tests shown in table 5.

  

  

Table 3. One-way parametric and non-parametric tests used to analyse continuous data in ANY-maze.

  

  

Table 4. Two-way parametric and non-parametric tests used to analyse continuous data in ANY-maze.

  

  

Table 5. Post-hoc parametric and non-parametric tests used to analyse continuous data in ANY-maze.

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ANY-maze help topic T0046