DrPhillips Is a Cognitive-Developmental Psychologist Who Studies How Children Learn

question 40

Essay

Dr.Phillips is a cognitive-developmental psychologist who studies how children learn mathematical principles.His current interest is in studying how children learn multiplication.He recruits 54 second-graders who have not yet learned how to multiply numbers to participate in his study.He is curious as to whether different teaching styles lead to better mastery of the subject.One condition (A)involves having students read a chapter on multiplication from their textbook.One condition (B)involves having students watch a video of cartoon characters explaining multiplication.One condition (C)involves having students being taught multiplication from a teacher.One condition (D)involves having students being taught multiplication by a fourth-grader.In all conditions,participants spend 30 minutes learning the fundamentals of multiplication and are then given the same 15-question multiplication test.The number of questions answered correctly is recorded.The data are below.


-Name two ways that Dr.Phillips could avoid selection threat when he is assigning participants to conditions and explain why each of these methods avoids selection threat.

Understand the motivations behind certain real estate investments such as land subdivision and vacation homes.

Comprehend the concept of a real estate syndicate and the benefits of professional management.

Recognize the liquidity and cash flow considerations in real estate investments.

Understand the concept of corporate social responsibility and its dimensions.

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Definitions:

Premium

The amount by which the price of a financial instrument, such as an insurance policy or bond, exceeds its face value or nominal cost.

NAV

Net Asset Value; the total value of a fund's assets minus its liabilities, often used in the context of mutual funds.

Closed-End Mutual Funds

Investment funds with a fixed number of shares that are traded on stock exchanges, unlike open-end funds which do not have a fixed number of shares.

NAV

Net Asset Value, representing the per-share/unit price of a fund on a specific date or time.