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 she suffered brain damage to the visual cortex in her occipital lobe. 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 her reduced ability to form visual images was related to the brain damage. The kind of evidence used in this study is likely to have which of the following limitations?

A) It may be unique and not generalize to other people.
B) It may be based on an authority who lacks expertise.
C) It is based on clinical opinion without support of evidence.
D) It is based on what is believed to be true about brain damage.