# PSY 125 Lifespan Development Chapters 1-13 Finial Exam Study (not chapter 2)

Erikson's conceptualization of the epigenetic principle provides the basis for psychosocial theory's sequence of stages
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Gracie helps her mother set the table for dinner without being asked. She lays out napkins and silverware, places the plates in their correct spots, and puts ice in all of the glasses. When her mother realizes that she has done this, she gives Gracie a big hug, thanks her repeatedly, and later gives her a little extra dessert as a treat. In learning theory, we would say that Gracie's behavior has been:
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