10 free CLEP Psychology practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
CLEP Psychology Practice Test 12Tutor mode
Question 1 of 10
Cognition
At age 2, Leo correctly said "went" and "mice." At age 3, he begins saying "goed" and "mouses," forms he has almost never heard adults use. These errors are most often cited as evidence against which explanation of language acquisition?