How reliable is the Wonderlic test?
Based on total of 290 undergraduates, the split-half reliability of the Wonderlic Personnel Test was . 87 and the Pearson correlation between test score and mean grade was . 21. Implications are presented for the use of this test in an academic setting.
What does the Wonderlic Personnel test measure?
The Wonderlic Personnel Test (Wonderlic; Wonderlic Personnel Test, 1992) is designed to estimate overall intellectual functioning using a brief for- mat of 50 questions that involve mathematical, verbal, logical, and analogical reasoning skills. It is timed and takes 12 min. to complete.
Is a valid test a reliable test?
How do they relate? A reliable measurement is not always valid: the results might be reproducible, but they’re not necessarily correct. A valid measurement is generally reliable: if a test produces accurate results, they should be reproducible.
How can a test be valid but not reliable?
A measure can be reliable but not valid, if it is measuring something very consistently but is consistently measuring the wrong construct. Likewise, a measure can be valid but not reliable if it is measuring the right construct, but not doing so in a consistent manner.
Does Wonderlic measure intelligence?
The Wonderlic Personnel Test (WPT) not only measures intelligence. It is a measure of verbal, numerical and spatial abilities and the ability to think quickly and effectively. The WPT is used globally to screen job candidates in a short period of time and is frequently described as a quick IQ test.
Does the Wonderlic test measure intelligence?
Can you have validity without reliability?
Reliability is necessary for validity, but not sufficient (more information is needed). You CAN have good reliability WITHOUT validity. You can attain consistent scores, but the test might not be measuring what you think you’re measuring.
Can there be validity without reliability?
Although a test can be reliable without being valid, it cannot be valid without being reliable. If a test is inconsistent in its measurements, we cannot say it is measuring what it is intended to measure and, therefore, it is considered invalid.
Is the Wonderlic Personnel Test a valid measure of intellectual functioning?
Some have argued that the Wonderlic Personnel Test (WPT) may represent a brief and efficient measure of intellectual functioning (e.g., Dodrill, 1980 ). The present study investigated the validity of the WPT as such a measure, in individuals with head injury.
Is the Wonderlic-to-WAIS IQ test useful?
Based on this criterion, several studies found the clinical utility of the WPT to be good, with 81 to 94% of WPT scores falling within 10 points of the gold standard WAIS FSIQ. The availability of published Wonderlic-to-WAIS IQ conversion tables Dodrill 1980, Dodrill 1981 made the WPT even simpler to apply.
Are Wonderlic and WAIS-R scores the same?
Others compared WAIS-R scores to Wonderlic raw scores that had been age-corrected and standardized to a mean of 100 and a standard deviation of 15 (Edinger, Shipley, Watkins, & Hammett, 1985). In all cases it was found that mean WPT and WAIS-R scores were statistically different.
Is the Wechsler scale a valid measure of intellectual ability?
Studies attempting to validate the WPT as a measure of intellectual ability in normal, psychiatric, and neurological populations have yielded mixed results (see Table 1 for a summary of the studies). TABLE 1. Studies Comparing Wechsler Scale Performance to Wonderlic Performance