MRI studies have shown that enlarged ventricles and decreased gray matter are present before the onset of schizophrenia, which means that these abnormal brain structures are not caused by the disorder

If a study has high ecological validity, then the most likely conclusion is that

a. it had a large number of participants. b. it was conducted with animals, taking proper cautions about their safety. c. the results could be applied in real-world situations. d. the study was conducted by researchers with a behaviorist approach.

An electroencephalograph (EEG) measures the electrical activity of the ____

a. brain b. heart c. pancreas d. liver