Apply Your Critical Thinking Skills to the Accompanying Research Study

question 50

Essay

Apply your critical thinking skills to the accompanying research study description. Use the five critical thinking questions provided in the text as a basis for your response.
What am I being asked to believe or accept?
What evidence supports this position?
Are there other ways this evidence could be interpreted?
What other evidence would I need to evaluate these alternatives?
What are the most reasonable conclusions?
A newspaper headline reads "Intellectual pursuits key to preventing Alzheimer's disease?" The researchers scanned the brains of healthy seniors with no memory loss and asked the seniors to recall how much reading, writing, and game-playing they did when they were growing up. The researchers found that those who reported doing daily brain activities from a young age had low levels of amyloid plaques that are associated with Alzheimer's disease. The study involved fewer than 100 participants and could not account for certain factors that may have confounded the results, including socioeconomic factors, diet, and overall health behaviors that might also contribute to amyloid plaque formation and Alzheimer's risk. It also asked participants, whose average age was 76, to recall how much reading, writing, and game-playing they did when they were in elementary school, high school, and as young adults.

---

Definitions:

Straight-Line Depreciation

A method of allocating the cost of a tangible asset over its useful life in equal installments, simplifying accounting computations.

Salvage Value

The projected sale proceeds of an asset at the conclusion of its period of utility.

Payback Period

The length of time it takes for an investment to generate enough cash flow to recoup its original cost.

Accounting Rate of Return

The accounting rate of return (ARR) is an accounting metric that measures the profitability of an investment by dividing the average annual profit by the initial investment cost.