Dataset based on McArdle and Prescott (1992, p.90). This study evaluates intelligence and cognitive ability in a sample of individuals over 18 years of age (N = 1680) using the IQ test Wechsler Adult Intelligence Scale-Revised (WAIS-R) (Wechsler, 1981).
A data frame with 1680 rows and 10 variables.
|age|| ||Participants' age (recoded)|
|edc|| ||Whether a participant graduated high school or not (1 = not graduated, 2 = graduated)|
|y1|| ||information; general knowledge of participants|
|y2|| ||comprehension; ability of abstract reasoning or judgment|
|y3|| ||similarities; unifying a theme|
|y4|| ||vocabulary; verbal definition|
|y5|| ||picture completion; perceiving visual images with missing features|
|y6|| ||block design; arranging blocks to match a design|
|y7|| ||picture arrangement; ordering cards with true story lines|
|y8|| ||object assembly; reassembling puzzles|
McArdle, J. J., & Prescott, C. A. (1992). Age-based construct validation using structural equation modeling. Experimental Aging Research, 18, 87-115.
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