RESEARCH STUDY 10

question 12

Essay

RESEARCH STUDY 10.3: 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 by 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. Write a question you would ask of Dr.Phillips' study to interrogate each of the four validities.

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Definitions:

Cooperative Breeding

A reproductive system where more than two individuals contribute to the care of the offspring, enhancing survival rates in some species.

Polyandrous Species

Species in which females mate with multiple males within a single breeding season or mating period.

Monogamy

A mating system in which an individual has only one mate during a breeding season or for their entire life.

Reproductive Span

The period in an organism's lifespan during which it is capable of reproducing.