Increasing the ______ of references seems to increase validity

Studies using fMRI have discovered that the brains of children with ADHD have ____

a. restricted blood flow to the frontal cortex b. small abnormalities in the occipital lobe area c. larger than average ventricles d. little functioning in the temporal lobe area

Which statement is descriptive of the matching hypothesis? a. As couples are together longer, their behaviors tend to become very similar

b. People are drawn to others with traits and levels of attractiveness similar to themselves. c. Heterosexual people tend to find a partner who is similar to their opposite sex parent. d. People are more likely to choose partners with opposite characteristics to themselves.