​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?

​How many of the pairs of chromosomes in normal human cells are considered autosomes?

​Marvin has an exceptional amount of skill in athletics. Specifically, he is an extraordinary hockey player. Throughout his life he has chosen circumstances where he would be exposed to peers who also enjoyed hockey, and this has helped him develop opportunities to develop his talent. Marvin has been engaging in

​A child who weighs less than 1,000 grams at birth would be described as being a “low birth weight” baby.

​According to Jean Piaget, children demonstrate ____ when new information that they encounter is incorporated into their existing schemes.

​When a woman experiences higher levels of stress during pregnancy, her child may be prone to greater difficulties paying attention as an infant and higher levels of behavioral problems in preschool.