ex1320 | R Documentation |
Data set on 861 ACT Assessment Mathematics Usage Test scores from 1987. The test was given to a sample of high school seniors who met one of three profiles of high school mathematics course work: (a) Algebra I only; (b) two Algebra courses and Geometry; and (c) two Algebra courses, Geometry, Trigonometry, Advanced Mathematics and Beginning Calculus.
These data were generated from summary statistics for one particular form of the test as reported by Doolittle (1989).
ex1320
A data frame with 861 observations on the following 3 variables.
Sex
a factor with levels "female"
and
"male"
Background
a factor with levels "a"
, "b"
and "c"
Score
ACT mathematics test score
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Doolittle, A.E. (1989). Gender Differences in Performance on Mathematics Achievement Items, Applied Measurement in Education 2(2): 161–177.
str(ex1320)
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