PCS is calculated from the responses to specific questions within the SF-36 survey. Each domain score is standardized and weighted before being combined to produce the PCS score. The process involves several steps, including scoring the individual items, transforming these scores to a 0-100 scale, and then applying a specific algorithm to generate the summary score. The scores are often normalized to have a mean of 50 and a standard deviation of 10 in the general population.
