Author:
Source: Unknown - Date unknown
Please cite:
Datasets of Data And Story Library, project illustrating use of basic statistic methods, converted to arff format by Hakan Kjellerstrand.
Source: TunedIT: http://tunedit.org/repo/DASL
DASL file http://lib.stat.cmu.edu/DASL/Datafiles/Brainsize.html
Brain Size and Intelligence
Reference: Willerman, L., Schultz, R., Rutledge, J. N., and Bigler, E. (1991), "In Vivo Brain Size and Intelligence," Intelligence, 15, 223-228.
Authorization: Contact authors
Description: Willerman et al. (1991) collected a sample of 40 right-handed Anglo introductory psychology students at a large southwestern university. Subjects took four subtests (Vocabulary, Similarities, Block Design, and Picture Completion) of the Wechsler (1981) Adult Intelligence Scale-Revised. The researchers used Magnetic Resonance Imaging (MRI) to determine the brain size of the subjects. Information about gender and body size (height and weight) are also included. The researchers withheld the weights of two subjects and the height of one subject for reasons of confidentiality.
Number of cases: 40
Variable Names:
Gender: Male or Female
FSIQ: Full Scale IQ scores based on the four Wechsler (1981) subtests
VIQ: Verbal IQ scores based on the four Wechsler (1981) subtests
PIQ: Performance IQ scores based on the four Wechsler (1981) subtests
Weight: body weight in pounds
Height: height in inches
MRI_Count: total pixel Count from the 18 MRI scans