Question 21 Savannah is conducting an experiment to measure ice cream consumption during hot days. She assigns everyone who arrives before noon to be in the control group and everyone who arrives after noon to be in the experimental group. In the context of experimental research, what is wrong with Savannah's study? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a the experiment is desceptive. b Savannah has introduced a confederate into the study. Savannah has not used random assignment. d the experiment is not ethical. == Question 22 R Tim is shown a picture of two people looking at each other and talking; he is then asked to write a story about it. In Tim's story, he says that the two people are a couple but they were having a horrible argument, and one of them is calling the relationship off. Based on Tim's response, psychologists would probably conclude that Tim has a stronger Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a Behavioral Inhibition System b Behavioral Activation System C Behavioral Introspection System d Behavioral Arousal System Question 23 Many psychologists develop their theories through the observation of behaviors demonstrated by individuals around them. Piaget and Freud both witnessed the same behavior, but Freud discussed it in terms of oral fixation while Piaget attributed it to the sensorimotor developmental stage. What specific behavior did both psychologists see and discuss in their respective theories? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a babies like toys that make rattling sounds. b babies will follow an object that is waved in front of their faces. C babies prefer to look at objects that have a high color contrast. d babies tend to put everything in their mouths. == Question 24 At a young age, Jackson learned to play simple pieces of music on several different instruments. However, as Jackson got older, he decided to focus on only playing the piano. Years later, Jackson found his old violin in a box in the attic, and he tried to play it. Though he could pick out a few notes, he wasn't able to play nearly as well as he could when he was younger. What developmental change is best explains Jackson's inability to play the violin? Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a a reduction in the autonomic memory of playing the piano b the increased sophistication of the gross motor system C the pruning of neurons related to instruments other than the piano d an increased activation of neurons related to violin-playing == Question 25 Now that Amber Lynn is 22 weeks pregnant, she can relax a little more at her check-ups because: Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a her baby is no longer sensitive to teratogens. b her baby will almost definitely be able to survive if born from now on. her baby has now completed organogenesis. d her baby has now passed the age of viability.