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Absolute Category Rating (ACR) is a test method used in quality tests. [1] [2] The levels of the scale are, sorted by quality in decreasing order: Excellent; Good; Fair; Poor; Bad; In this method, a single test condition (generally an image or a video sequence) is presented to the viewers once only. They should then give a quality rating on an ...
The Spearman–Brown prediction formula, also known as the Spearman–Brown prophecy formula, is a formula relating psychometric reliability to test length and used by psychometricians to predict the reliability of a test after changing the test length. [1] The method was published independently by Spearman (1910) and Brown (1910). [2] [3]
Splitting the test in half; Correlating scores on one half of the test with scores on the other half of the test; The correlation between these two split halves is used in estimating the reliability of the test. This halves reliability estimate is then stepped up to the full test length using the Spearman–Brown prediction formula.
The test is currently in its second edition, published in 2015. [2] Both editions are suitable for evaluation of intellectual giftedness, [3] and high scores are accepted as qualifying evidence for high IQ societies such as Intertel (min. IQ ≥ 135) and American Mensa (min. IQ ≥ 130). [4] [5]
These versions were evaluated using several criteria, such as internal consistency of the scales (or how much the items in one scale correlate with each other). The ability to fake good or bad while taking the test was also evaluated using a sample of college students that were given different instructions on how to answer the test. [3]
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The highest score obtainable by direct look-up from the standard scoring tables (based on norms from the 1930s) was IQ 171 at various chronological ages from three years six months (with a test raw score "mental age" of six years and two months) up to age six years and three months (with a test raw score "mental age" of ten years and three ...
Some studies have claimed that smaller amounts of alcohol are good for you. Others say that any amount of booze is bad for your body. The World Health Organization (WHO) recently took the latter ...