The survey has its own hierarchy. With dividend on the top and followed by dimensions, scales, and questions.
Human performance indicator (HPI) is the result of chosen scales combined over different dimensions with a single purpose. Presenting data more focused on a higher level aimed at creating an overall understanding of the organization’s behavior.
Dimensions have been structured over the last 20 years. Scales that seems to correlate with each other or tackle the same area of exploration but with different angles are aggregated into dimensions. A dimension can include several scales. As an example, the dimension ”Demand at work” is the home of the scales ”work pace,” ”emotional demand” and ”quantitative demands”.
Scales are a category that harbors 2 to 4 questions with the intent of asking about the exact same subject but from a different point of view. All research has shown that the questions in the same scale have a reliable correlation with each other making sure that every question in the same scale asks about precisely the same issue.
Questions are the foundation of the survey and validated through long and hard research to make sure that the answers correspond precisely to what the question wants to unravel and nothing else.