brainsize {RbyExample}

Brain Size and Intelligence Data

Description

Data from a study comparing brain size and intelligence.

Usage

brainsize

Format

40 obs. of 7 variables:

Gender

Male or Female.

FSIQ

Full Scale IQ scores based on four Wechsler (1981) subtests.

VIQ

Verbal IQ scores based on four Wechsler (1981) subtests.

PIQ

Performance IQ scores based on four Wechsler (1981) subtests.

Weight

Body weight in pounds.

Height

Height in inches.

MRI_Count

total pixel count from the 18 MRI scans.

Note

There are missing values in Weight (2) and Height (1).

Source

Willerman et al (1991).