Knowledge Base

Step 3 - Analyze your data

First determine what you want to analyze. For example: Analyze the duration and frequency of behaviors in an observation or all observations. Carry out Behavior analysis (below) or, for numerical modifiers, Numerical analysis (page 19). Analyze a selection of behaviors, subjects or observations. Use Data selection (page 19) to filter the behaviors, subjects, or observations (page 20) and then carry out the analysis (below). Analyze a behavior while another one occurs. Use Data selection (page 19) to create intervals based on a behavior (page 22) and then carry out the analysis (below).

behavior analysis

Choose Analyze > Behavior analysis > New.

Click Statistics to choose which statistics you

want in your analysis result. Next, click

Calculate. You obtain a table with the

calculated statistics. Step 3 - Analyze your data To change the table layout, click the Layout button. You can move categories with the arrow keys, for example from On Rows to On Columns, or On Sheets. Alternatively, drag the item from a box and drop it in another one. Choose how you want to organize the layout of the analysis result.

The effect of selecting and deselecting a category

If you select the checkbox in front of a category, you get separate analysis results for each item in that category. For example, if you have two observations and select the checkbox in front of Observations, you get separate analysis results for each observation. Step 3 - Analyze your data If you deselect the checkbox, all observations are grouped and you get one analysis result for all observations together. It is not possible to deselect the category Behaviors.

numerical analysis

A numerical analysis can only be carried out if you have numerical modifiers in your Coding Scheme. A numerical analysis gives additional statistics above the ones obtained in the behavior analysis. For example if you defined Sound level as numerical modifier, you can calculate the minimum, mean and maximum sound level. The procedure is the same as for the Behavior Analysis.

analyze a selection of the data

To analyze a selection of your data, do the following: 1. Choose Analyze > Select Data > New Data Profile to create a data profile. You can create multiple data profiles, for example, one to analyze gaze behavior and one to analyze play behavior. 2. Specify the selection. - Use Filter to select some observations, subjects or behaviors (page 20). - Use Select Intervals to create time intervals during which a certain behavior occurred (page 22). Step 3 - Analyze your data 3. Check the result of your selection. To do so click Visualize button on the toolbar and select the observations to visualize. 4. Click the correct data profile in the Project Explorer to activate it. This profile is used for analysis and visualization. 5. Analyze your data (see page 17).

Analyze a selection of behaviors, subjects or

observations

Use the filter option to analyze only some observations, subjects, or behaviors. For example, to analyze only the behavior Gazing at patient. 1. Click the box next to Filter Events > By Behaviors. 2. Make your selection. Step 3 - Analyze your data 3. Click OK and drag the box between the Start and the Result box. 4. Visualize the selected data. Check whether your selection criteria are correct. Filtering gives you only those data you defined in your filter. In the example below the behavior Gazing at patient was filtered. Only this behavior is shown in the Visualization. 5. If the selection is correct, carry out Behavior analysis (page 17) or Numerical analysis (page 19) on the selected data. Step 3 - Analyze your data

Analyze a behavior while another one occurs

As an example, you want to know what a female bird did when the male bird was at the nest. Define a time interval based on the behavior (or behavior and its modifiers). To do so: 1. Click the box next to Select Intervals > By Behaviors. 2. Select the behavior in the window that opens. If you have multiple subjects in your Coding Scheme, choose from the

The selected Behaviors occur in list which subject

performed the behavior. 3. Then position the selection box in the data selection sequence (see 3 in the picture on page 21). 4. Visualize the data to check your selection. The time fragments when the male bird was in the nest are selected. All events that took place in these intervals, not only Male > In, are shown in the white areas in the visualization. These data Back up your data will be analyzed. Compare the figure below with the bottom one on page 21 for the difference between analyzing a subset of the data and analyzing intervals. 5. If the selection is correct, carry out Behavior analysis (page 17) or Numerical analysis (page 19) on the selected data.

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Source: The Observer XT 17 - Quick Start Guide