​According to your textbook, approximately one in every ____ children born in the United States will one day be diagnosed with autism spectrum disorder.

​Mariposa is lying in her crib, and is making elongated single vowel sounds, like “ahhhhhhh” and “oooooooh.” If she has only recently begun to make these sounds, how old would you guess that Mariposa is?

​When a measure being used in a research study actually assesses what the researchers think it measures, it would be described as being

By the time a baby reaches his first birthday, he will spend about 25% of its sleep time in _______________ sleep, which is similar to sleep patterns of an adult.

You are looking out into your yard at a beautiful Japanese maple tree. You notice the tree has many branches with lovely purple leaves on them. The leaves are capturing raindrops from the current storm. If this tree were actually a neuron, the leaves that capture incoming information would be the ________.

​____ involves applying grammatical rules to words that are, in fact, exceptions to those rules.

​There are many jokes out there about the advantage that having opposable thumbs gives human beings over most animals. As your authors note, however, it is not until the age of ____ that children actually start to use their thumbs as part of the grasping process!

Describe the three main forms of learning as they related to the information-processing model of cognitive development.

​A(n) _______________ variable in an experiment is the condition that is manipulated by the researcher.

​Why is it that malnourished children are often quiet and express little interest in what goes on around them?