IQ {mffSM}R Documentation

Data on IQ and Primary School grades

Description

Data from a certain pedagogical research involving children from last two years of the Primary School. The research was directed towards examination of the relationship between intelligence expressed by IQ and school results expressed by the mean grade on a school report from the middle of the 7th and 8th years of the Primary School (prelast and last year of the Primary School in the Czech Republic at the time of the research). The grading scale goes from 1 to 5 with 1 being the best grade.

Data are used for some illustrations in the book Regrese by Karel Zvára (Zvára, 2008).

Usage

data(IQ)

Format

A data.frame with 111 rows and the following variables.

gender

gender of a child, 0 = girl, 1 = boy

fgender

factor with levels girl/boy corresponding to the variable gender

iq

IQ of a child

zn7

a mean grade from the school report from the middle of the 7th year

zn8

a mean grade from the school report from the middle of the 8th year

Source

http://msekce.karlin.mff.cuni.cz/~zvara/regrese/kniha/R.ZIP

References

Zvára, K. (2008). Regrese. Praha: Matfyzpress. ISBN 978-80-7378-041-8.

Examples

data(IQ)
summary(IQ)

[Package mffSM version 1.2 Index]