The Work Style Survey measures the same four dimensions as the Personality Survey, but through a work-specific lens. Instead of asking how someone naturally is, it asks how they operate at work to be successful.
The two surveys often produce different scores for the same person. That's the point. Someone's natural personality and how they've adapted to their role can diverge, and comparing the two gives you a fuller picture than either survey alone.
What it measures
The Work Style Survey scores the same four core dimensions as Personality: Self Direction, Sociability, Patience, and Formality. The scoring model, the profile types, and the way you read the results are all the same. What changes is the framing of the questions.
Where Personality asks the respondent to describe themselves as they really are, Work Style asks them to answer based on how they operate at work.
When to use it
Use Personality when you want to understand who someone is at their core. Use Work Style when you want to understand how they show up on the job, or when you want to see the gap between the two.