Search results
Results from the WOW.Com Content Network
Data for 1985 and on are for seniors who graduated in the year shown and had taken the ACT in their junior or senior years. Data for 2013 and on includes extended-time test takers. Possible scores on each part of the ACT range from 1 to 36.
The Woodcock–Johnson Tests of Cognitive Abilities is a set of intelligence tests first developed in 1977 by Richard Woodcock and Mary E. Bonner Johnson (although Johnson's contribution is disputed). [1] It was revised in 1989, again in 2001, and most recently in 2014; this last version is commonly referred to as the WJ IV. [2]
The current version of the test, the WAIS-IV, which was released in 2008, is composed of 10 core subtests and five supplemental subtests, with the 10 core subtests yielding scaled scores that sum to derive the Full Scale IQ. With the WAIS-IV, the verbal/performance IQ scores from previous versions were removed and replaced by the index scores.
Trained interviewers administered the test at the end of a face-to-face private interview in an examination center and two interviewers independently scored the test. An extensive analysis of these data has been published. [10] Scores (mean, 25th percentile, 75th percentile) declined with age: 60-69y: 57, 46, 68; 70-79y: 48, 38, 68; 80+y: 40 ...
The test is available in 46 languages and dialects (as of 2017). In this clock drawing task, the subject is asked to draw a clock with the hours and showing the time 2:30. Successive results show a deterioration of pattern processing ability in a subject as they progress from mild cognitive impairment (MCI) to severe Alzheimer's disease (AD ...
Any score of 24 or more (out of 30) indicates a normal cognition. Below this, scores can indicate severe (≤9 points), moderate (10–18 points) or mild (19–23 points) cognitive impairment. The raw score may also need to be corrected for educational attainment and age. [23]
The test takes approximately 12–20 minutes to carry out using manual scoring which is greatly reduced with the aid of computer testing. [ 6 ] [ 7 ] The test results produce a number of useful psychometric scores, including numbers, percentages, and percentiles of: categories achieved, trials, errors, and perseverative errors.
It is scored out of 100, with a higher score denoting better cognitive function. At the recommended cut-off scores of 88 and 83, the ACE was reported to have good sensitivity and specificity for identifying different forms of dementia and other impairments of memory and judgement (0.93 and 0.71; 0.82 and 0.96, respectively). [ 5 ]