These data were simulated to match the summary statistics and conclusions of Rosenthal and Fode's Clever Hans experiment. Each of 12 students trained rats to run a maze. The data set contains their number of successful runs out of 50 on each of 5 days, the student's prior expectation of success (on a scale from -10 to 10), and a variable indicating treatment--whether or not the students were supplied with the fictitious information that their rights were bright.
2120A data frame with 60 observations on the following 5 variables.
a student identification number
the student's prior expectation of rat-training success, on a scale from -10 to 10
a factor with levels "bright" and "dull"
corresponding to whether students were told (falsely) that their rats were
bright or not
day of the study, ranging from 1 to 5
the number of successful maze runs on a day, out of 50
Rosenthal, R. and Fode, K.L. (1963) The Effect of Experimenter Bias on the Performance of the Albino Rat Behavioral Science 8:3: 183--189.