To demonstrate flavor aversion learning (that is, learning todislike a flavor that is associated with becoming sick),researchers gave one group of laboratory rats an injection oflithium chloride immediately following consumption ofsaccharin-flavored water. Lithium chloride makes rats feel sick. Asecond control group was not made sick after drinking the flavoredwater. The next day, both groups were allowed to drinksaccharin-flavored water. The amounts consumed (in milliliters) forboth groups during this test are given below.
AmountConsumed
by Rats That Were
Made Sick (n = 4) | AmountConsumed
by Control Rats
(n = 4) |
|---|
| 4 | 8 |
| 1 | 12 |
| 5 | 7 |
| 3 | 12 |
(a) Test whether or not consumption of saccharin-flavored waterdiffered between groups using a 0.05 level of significance. Statethe value of the test statistic. (Round your answer to threedecimal places.) ?
(b) Compute effect size using eta-squared (?2).(Round your answer to two decimal places.)
?2 =
