Many individuals require organ transplants every year. Unfortunately, there are not enough donors to meet the needs in most countries. In Europe, several countries have discovered a successful way to increase the number of donors—make everyone an organ donor unless s/he opts out. In one of the Choiceology podcasts that you listened to as part of Lesson 14, it describes other similar applications (e.g., retirement) to the organ donor program. Which of the following cognitive principles does the organ donor program and similar applications rely on to be effective?

Suppose that you are listening to a lecture, and another student’s chair squeaks loudly during the middle of a word, so that the middle of that word cannot be heard. Nonetheless, you do not detect any interruption in the word. Which of the following cognitive phenomena does this example illustrate?

In the balanced equation for the reaction:       xP4O6(s) + yH2O(l) → zH3PO3(aq) if x equals 2, the coefficient z equals:

Which of the following activities best illustrates a declarative memory?

Consider the reaction Calculate the number of grams of silane gas, SiH4, formed when 42.4 g of Mg2Si reacts with excess H2O.

Paul believes that taking a stimulant medication (e.g., Ritalin) will increase college students’ attention spans. To test his hypothesis, he recruits five friends who take ADHD medications and asks them to complete a measure of attention two hours after they have taken their medication. What is wrong with Paul’s research strategy?

Sara​, a nine-year-old girl, has experienced extreme irritability and mood swings over the past year. She frequently demonstrates angry emotional outbursts and demonstrates low frustration tolerance. She does not report periods of elated mood. Which of the following diagnoses is most consistent with Sara’s symptoms?

Conversion disorders are best described as ________.​

Which of the following disorders is most amenable to treatment with selective serotonin reuptake inhibitor medications? ​

Which of the following parenting strategies is most likely to reduce children’s risk for developing anxiety disorders? ​