Knowledge Base

Project Analysis In Short

Aim

• Visualize or tabulate the data that you have acquired and calculate the average intensities of the facial expressions and other parameters for your participant groups.
• Compare participant groups and run a t-test to test for significant differences.
• Play back your stimulus video together with a video of the participant's face and a Line Chart with the facial expressions and other parameters.
• Create heatmaps on your stimuli showing the hotspots that attracted your test participants' attention.
• Calculate correlations between data sets and visualize data sets side by side or in a correlation graph.

Prerequisites

• Your license includes the Project Analysis Module.
• Your project includes one or more video analyses or camera analyses.

Procedure

1. Open the Project Analysis: from the Project menu select Open Project Analysis or click the Open project analysis icon above the Participants list.

Project Analysis In Short

Default FaceReader shows a Line Chart with the average intensities of the facial expressions of all your test participants. See Line Chart for more information about this type of chart. FaceReader also shows the face video of your first test participant. If your project contains stimuli FaceReader will show the first stimulus video/image.

If your stimulus is a video — Play the stimulus video and the face video together with the Line Chart. See Visualize your stimulus, participant videos and line chart for more details.

1. Click one of the tiles for the option of your choice:

• Quick Layouts — This option allows you to pick from a couple of charts to give you a first impression of the data. See Quick Layouts for more information.
• Pie Chart, Bar Chart, Box Plot, Line Chart or Circumplex Model — Select one of the options to visualize your data. Circumplex Model is only available if you scored stimuli or event markers in your project. See Visualize your data in a chart for more information.
• Heatmap — To create a heatmap on one of the stimuli.
• Table — To calculate statistics on the analyzed facial expressions and other parameters of all participants, participant groups or single participants. See Calculate statistics and summarize them in a table for more information.
• Stimulus — To add your stimulus videos to the visualization. You can play back your stimulus videos together (synchronized) with a Line Chart with the facial expressions and other parameters. See Visualize your stimulus, participant videos and line chart for more information.
• Participant — To add your participant face video to the visualization. You can play back your participant videos together (synchronized) with the stimulus video and a Line Chart with the facial expressions and other parameters. See Visualize your stimulus, participant videos and line chart for more information.
• Compare — To compare two or more data sets in a chart or table and carry out a t-test to test for significant differences. See Compare data for more information.

3. Select the data you want to include in your analysis. See Data selection for more information. Your chart/table will appear.

Click Save Layout to save the chart/tables you made so you can use them again. Enter a Layout name and click OK.

Click Load Layout to open the charts/tables/videos that you saved in your layout.

Click Clear Layout to delete all the charts/tables/videos.

Source: FaceReader 10 Reference Manual (Help), Noldus Information Technology