For medical insurance and research on dependency, a person is usually considered frail if he or she is unable to perform three of the activities of daily living

People in unhappy relationships tend to idealize their partner and to view their own relationship as superior to those of others

Indicate whether this statement is true or false.

Researchers have found that children who use more private speech as they solve problems show higher levels of

a. cognitive development. b. executive functions. c. vocabulary knowledge. d. grammatical development.