TAIS Research and Resources - Tech Info
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Technical Information

With normative samples totaling over 8,700 respondents, the TAIS is supported by more than 25 years of research and application. Its reliability studies include evaluation of internal consistency and test-retest reliability. Because of its expansive normative database, over a dozen comparative groups are available for use, including adolescents, business executives, engineers and amateur athletes.

Collecting normative data is an important part of test development. Norms establish a baseline against which all subsequent results are compared, and they enable the test developer to capture the characteristics of an “average” respondent. Norms indicate the average performance on a test and the frequency of deviation above and below the average. The larger and more representative the normative database, the more accurate and indicative the results.


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