​The phrase, “interest but no interaction,” best describes ____ play.

​Why is there no conclusive evidence that there is a specific amount of alcohol a pregnant woman can drink without causing harmful effects to her child?

​What is it that distinguishes ‘early’ make-believe play from ‘later’ make-believe play?

​Matti finds himself unable to adjust to college because he doesn’t seem to have the study skills necessary to earn passing grades. Matti’s predicament would probably best be explained by

​Jeanette and her husband Eric have recently engaged in sexual intercourse. After this activity was completed, an egg in Jeanette’s Fallopian tube was fertilized by a sperm cell that was released by Eric. The result is a(n) ____, which marks the beginning of pregnancy.

​Cosella is conducting an experiment where she assesses how quickly teenagers can run a 100-meter race after consuming specific amounts of caffeine. She divides her sample up into three groups. Group 1 receives a glass of water with no caffeine added. Group 2 receives a glass of water with an amount of caffeine equivalent to that in one cup of coffee. Group 3 receives a glass of water with an amount of caffeine equivalent to that in two cups of coffee. Each participant is then timed as they run the course. In this study, the dependent variable is

​The process by which certain sensory information receives additional cognitive processing is called ____.

​The idea that number names must be counted in the same sequence, without change, defines the ____.

​While Piaget believed that the theories that children develop about their worlds are comprehensive in explaining a variety of phenomena, the ____ hypothesis believes that infants are born with rudimentary knowledge of the world that is elaborated upon based on the child’s experiences.

​Regarding comprehensive theories that guide all research in the field of human development, which of the following is the most accurate statement?