Primary intersubjectivity refers to a baby’s use of the cry signal starting at birth.

Contemporary research has revealed distinctive patterns of experience for different subgroups of sexual minority youth, such as:

During middle childhood, children tend to play with:

According to information-processing theorists, control processes:

Karen wants to play marbles with her friend Ami, but as they start to play it becomes clear that they have different ideas about what the rules are. They get upset with each other. Karen says, “My mom said we were supposed to play this way.” Ami says, “That’s wrong. My mom said it was this way.” What age are the girls most likely to be?

Cognitions and feelings about who one is as a sexual being is referred to as:

What is semenarche?

Which of the following goals is MOST important to parents whose families are living under conditions of threat?

Nicaraguan sign language developed because:

German researchers extended Chi’s studies with chess experts and found that when expert and novice chess players were asked to remember the random placement of chess pieces: