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Dave conducts an analysis designed to test whether the strong correlation observed between the number of churches and the number of bars in a city could be explained by a third variable: the population of the city. He decides to use the matched pairs technique to analyze data from four cities. To do this, Dave ______________.

Ada the ape is learning how to open a locked box by watching another ape open the box. While Ada is watching her mirror neurons are active and these are the same neurons that will be active when Ada herself opens the box.

Dr. Zin is testing a new drug that helps people sleep better because the drug acts as a melatonin agonist. This means the drug ______________.

Harry frequently visits a clinic to receive injections of his allergy medication which has the side effect of increasing his heart rate. The injections are administered in an exam room with blue walls. Harry notices that after several occasions of getting his injections, his heart rate increases as a result of simply being in any room that has blue walls. The increase in heart rate associated with blue walls is an example of a(n) ___________.

Recently, Lauren has noticed a marked decrease in her mood during the winter months that improves in the spring and summer as she gets more access to sunlight. To combat her depressive symptoms during the winter months, she would likely benefit from __________.

Henry suffers from depression and finds little joy in his everyday activities. His doctor tells him that his brain does not respond well to reward and that he may benefit from a medication that increases the activity of ______________, a neurotransmitter that plays a key role in reward.

Fred recently joined an intramural baseball team. During his first game, a teammate hit a home run. Because Fred often watches baseball on T.V., he knows that players usually congratulate each other by slapping one another’s butts. When Fred’s teammate returned to the dugout, Fred slapped him on the butt. The concept of (the) _____________ best explains why Fred slapped the teammate’s butt.

Two-year-old Jackie takes her mother’s keys from her purse and puts them in a toy chest. Later, when her mother cannot find the keys in her purse, Jackie is surprised her mother did not know they were in the chest. Because she cannot understand that her mother’s perspective is different from her own, Jackie appears to have a problem with _____________.

During training in a flight simulator, a new pilot failed to notice a bird appear in her flight path because she was busy monitoring multiple screens with information regarding speed and altitude. This error in perception could be classified as ___________

 Bill does not have a bent little finger , but his parents do have bent little fingers.   Bent little finger is dominate over straight little finger.   What is Bills genotype?