A Neurologist Measured a Woman's Ability to Form Visual Images

Multiple Choice

A neurologist measured a woman's ability to form visual images after brain damage to her visual cortex. He observed that the visual images she could form were severely reduced in size. After describing her imagery ability and the extent of her brain damage, the neurologist concluded that the woman's reduced ability to form visual images was related to the brain damage. The kind of evidence being offered is from a(n) :

A) field study.
B) anecdote.
C) case study.
D) quasi-experiment.