This dataset, brain_size_iq_df, is a data frame containing neurocognitive measurements from a study examining relationships between brain size, gender, and intelligence. The data include 40 right-handed psychology students with no neurological history, selected based on extreme Scholastic Aptitude Test scores.
Usage
data(brain_size_iq_df)Format
A data frame with 40 observations and 7 variables:
- ID
Numeric: Participant identification number
- GENDER
Factor with 2 levels: Participant's gender (Male/Female)
- FSIQ
Numeric: Full Scale IQ score
- VIQ
Numeric: Verbal IQ score
- PIQ
Numeric: Performance IQ score
- MRI
Numeric: Brain size measurement from MRI (in cubic cm)
- IQDI
Factor with 2 levels: IQ group classification (High/Low)
Source
Data taken from the sur package version 1.0.4. Original study: Willerman, L., Schultz, R., Rutledge, J.N. and Bigler, E.D. (1991) In Vivo Brain Size and Intelligence. Intelligence, 15, 223-228.
Details
The dataset name has been kept as 'brain_size_iq_df' to avoid confusion with other datasets in the R ecosystem. This naming convention helps distinguish this dataset as part of the NeuroDataSets package. The suffix 'df' indicates that the dataset is a data frame. The original content has not been modified.