What kind of attachment, according to Ainsworth, is shown by a baby who clings to his or her mother, gets upset when the mother leaves, and demands to be picked up but at the same time kicks and pushes her away?

Which of the following steps should Anna's parents take if they want to protect her from sudden infant death syndrome?

a. keep her out of nonparental child care until the age of 12 months b. put her on her back to sleep, even at nap time c. make sure that there are enough blankets, comforters, and quilts in her crib so that she does not get too cold when she is sleeping d. have her sleep with them in their bed until the age of 9 months

Rhianna is participating in a study on social contacts and subjective well-being. After each social interaction that is longer than 5 minutes in duration, Rhianna logs into a site and responds to a series of questions about how she is feeling. The researcher is using ____ self-report in this study

a. signal-based b. event-based c. interval-based d. bogus pipeline