Infants typically double their weight by their third month, and triple it by their first birthday.

​Brad and Angelina take their daughter Anniston to the zoo, and are looking at a bunch of different animals. Anniston, who has recently been learning about human development, sees a ____ and says, “Mommy, Daddy! That looks just like a human embryo in its third week of development!”

​If the same group of research participants is evaluated repeatedly over a long period of time, then a longitudinal study is what is being conducted.

​The newborn state of ____ is defined as a period where the baby’s eyes are open but they seem unfocused, and its arms and legs move in bursts of uncoordinated motions.

​Place the following basic emotions in the chronological order in which they typically emerge in a normally-developing child:

​The newborn is to sleeping ____ hours at a time as the six-month old is to sleeping ____ hours at night.

​Complex emotions differ from basic emotions in that complex emotions require some understanding of

​Whenever Ridgley has a headache, he takes two aspirin tablets. Shortly thereafter, the pain goes away. The next time the headache shows up, Ridgley is more likely to take an aspirin. In learning theory, we would say that Ridgley’s behavior of taking the aspirin has been

​How does temperament contribute to attachment?

Some researchers have suggested that a phenomenon called “mindblindness” underlies the autism spectrum disorders.