​Kimmy is playing with her doll in her yard, and is watching as Shira-Leah is playing with a similar doll in the yard across the street. Shira-Leah is also aware of and observing Kimmy, but the two girls have not yet played together. These youngsters are engaging in ____ play.

​The strength of a relationship between two variables is indicated by the ____ of the correlation coefficient.

​Which of the following is NOT one of the aspects of a typical four-year-old’s theory of biology?

​When one’s actions or remarks support others and sustain interactions, they can be described as engaging in ____ exchange.

​As Delia and her mother are out shopping, they watch as another shopper accidentally drops her basket of groceries all over the floor. Delia’s mother tells her to wait while she assists the lady, and proceeds to help pick up all of the dropped groceries. At school the next day, Delia assists a classmate who dropped her books on the way into class in the same manner. In this case, Delia’s mother has helped inspire prosocial behavior by

​Tavon is eating something, and he puts some of it on his fingertip and puts it to the lips of his 2-week old son, Tray. Tray responds by licking his lips, sucking on Tavon’s fingertip vigorously, and smiling. It is most likely that Tavon gave Tray something ____ to taste.

​Which method of collecting research data has the benefit of being easy to administer to large groups of participants?

​Imitation is most closely related to the concept of

​A memory for some significant life event is called a(n) ____ memory.

​Larry and Ira are brothers who are two years apart in age. Larry went to one public school for his grade school years, but before Ira could go to that school the district underwent a rezoning. Ira, therefore, ended up going to a different school with less-qualified teachers and fewer resources. As a result, Larry tended to perform much better in school than Ira did. This example demonstrates the influence of