Introduction
Best Worst/Max Diff method involve in providing panellist a list of different statement which they have to chose which is the most and the least preferred. Best Worst/Max Diff can be used for multiple items, such as brand preferences, brand images, product features, advertising claims, etc.
Template Description
The template starts with an initial screen providing instructions to panelists. Within the design section, the first screen features a Matrix with Samples question type. This question allows the middle column to display the statements intended for panelists to read. Panelists are then prompted to select the most important statement (left column) and the least important statement (right column). It's important not to alter the values of these columns, which should remain as 1, 0, and -1 for proper analysis using the Best Worst analysis in EyeOpenR.
Statements can be added in the Design > Products section, where each product can include a description under Product > Description.
In the Design > Design Settings, options are available to determine how each panelist receives the samples, with different presentation orders for individual panelists. By default, the template presents five samples in a block design, implying that all products/statements are shown simultaneously in the matrix question.
To include additional samples, navigate to Design > Design Settings > Generate Design and adjust the number of samples. After making changes, click on Generate Design to implement them.
Raw Data Representation
The raw data will be displayed, with each row corresponding to a specific panellist and the sample they were presented with. The "Best Worst/Max Diff" column will contain the value assigned to each sample in the matrix question.
Analysis
References
- Jaeger, S. R., Jørgensen, A. S., Aaslyng, M. D., & Bredie, W. L. P. (2008). Best–worst scaling: An introduction and initial comparison with monadic rating for preference elicitation with food products. Food Quality and Preference, 19(6), 579–588.
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