case1601 {Sleuth2} | R Documentation |
Researchers taught 18 monkeys to distinguish each of 100 pairs of objects, 20 pairs each at 16, 12, 8, 4, and 2 weeks prior to a treatment. After this training, they blocked access to the hippocampal formation in 11 of the monkeys. All monkeys were then tested on their ability to distinguish the objects. The five-dimensional response for each monkey is the number of correct objects distinguished among those taught at 16, 12, 8, 4, and 2 weeks prior to treatment.
case1601
A data frame with 18 observations on the following 7 variables.
Monkey
Treatment
"Control"
and
"Treated"
Week2
Week4
Week8
Week12
Week16
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Sola-Morgan, S. M. and Squire, L. R. (1990). The Primate Hippocampal Formation: Evidence for a Time-limited Role in Memory Storage, Science 250: 288–290.
str(case1601) # short-term response short <- with(case1601, (Week2 + Week4)/2) # long-term response long <- with(case1601, (Week8 + Week12 + Week16)/3) # Multivariate analysis of variance mfit <- manova(cbind(short,long) ~ Treatment, case1601) summary(mfit)