The most common type of sex-chromosome variation is:

In the strange situation paradigm, there are two primary criteria that researchers use to assign infants to an attachment category. One of these criteria is:

a. whether the infant is willing to cross the visual cliff when encouraged by the caregiver b. the infant's emotional reaction when the caregiver leaves c. whether the infant shows a fear of strangers d. a willingness to explore in the presence of the caregiver

People may employ two strategies when resisting persuasive attempts. Which of the following accurately lists these two strategies?

A) Bolstering one's own view and counter-arguing. B) Engaging in cognitive dissonance and public commitment C) Taking the other person's perspective and monitoring one's self-esteem D) Just saying no and heuristically processing E) Walk away and turn down the volume