An event that involves actual or threatened death, or serious injury to self or others, and creates intense feelings of fear, helplessness, or horror is defined by DSM-5 as involving

Dr. Dobbins wants to study attachment patterns in single-parent families. The first step in her scientific investigation would be to

a. design the study and select the research method. b. analyze the data. c. formulate a testable hypothesis. d. collect the data.

Suppose that the baby is withheld from the mother's cuddling for the first three days. Even when given to the mother's care on the fourth day, the neonate has missed

a. the chance to learn to enjoy breastfeeding. b. the most sensitive period for maternal bonding. c. the risk of injury by any teratogens. d. the opportunity to learn reflexes.