Statistics of The Gate

Norms as of 7 May 2024 (preliminary)

• Quality of norms: √N × r² = 0.00
• Weighted mean correlation with tests used for norming: 0.000 (N = 0)
• Threshold correlation to select tests used for norming: 0.00
• Minimum number of scores per test used for norming: 0
• Norming method: Rank equation
• Sample-independent hardness: 0.80

Norms are obtained by anchoring the object test to those of the other tests that equal or exceed a threshold correlation with the object test. The threshold is set to maximize the quality of norms. All of the scores on thus selected tests are used, each score forming a pair with a raw score on the object test, so that there are more pairs than initial raw scores. Where needed, the scores from the other tests are converted to protonorms using a relevant conversion formula or table. The raw scores on the object test, which form pairs with the used scores, are equated to the used scores with the above indicated method, and where needed there is interpolation or extrapolation. Non-extrapolated floor scores are normed at the median of their range after equating but reported as Below the measured range of the test; in case of a single outlying non-extrapolated floor score, it is normed low in its range after equating. Possible non-extrapolated ceiling scores are normed at the median of their range after equating when rare, but are normed at the bottom of their range after equating when abundant (ceiling effect); in case of a single outlying non-extrapolated ceiling score, it is normed high in its range after equating.

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