PAR is a brand that specializes in data collection for the development of psychological tests. They have a strong focus on ensuring that their tests accurately measure what they are intended to and represent the appropriate populations. PAR collects data at various stages of test development, starting with a pilot stage where preliminary data is gathered with a small sample.

This data helps make decisions about item selection and potential alterations to the test. The next stage is standardization, where data is gathered with a larger, representative sample to create norms for scoring and interpreting test results. PAR ensures demographic representation in their samples using Census-based norming.

In addition, specific clinical groups may be recruited to serve as clinical comparison samples. Data collectors play a crucial role in PAR's research and development efforts, and they actively seek professionals such as clinical psychologists, psychometrists, speech and language pathologists, and other clinicians to participate. If you're interested in contributing to the field and partnering with PAR, they offer opportunities for data collectors to get involved.

The brand also provides resources and information about data collection and standardization through their blog and podcast