Description Usage Format Source References
This dataset is from a study to assess auditory differences between environmental sounds given several other factors.
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This data frame consists of 3 variables on 20 subjects:
pre.test
The subject's pre-test score.
gain
The gain in auditory score between the pre- and post-test administration of the treatment.
Culture
A cultural status indicator of individuals, where 1 means the subject is from a "culturally-nondeprived" group and 0 means the subject is from a "culturally-deprived" group.
Hendrix, L. J., Carter, M. W., and Scott, D. T. (1982), Covariance Analysis with Heterogeneity of Slopes in Fixed Models, Biometrics, 38, 226–252.
Young, D. S. (2017), Handbook of Regression Methods, CRC Press.
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