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

question 2

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.


-Write a question you would ask of Dr.Phillips' study to interrogate each of the four validities.

---

Definitions:

Black Codes

Laws enacted in the southern United States after the Civil War, aimed at restricting African Americans' freedom and compelling them to work in a labor economy based on low wages or debt.

Presidential Reconstruction

The initial phase of reconstruction after the Civil War, led by Presidents Lincoln and Johnson, focusing on quickly reuniting the country with leniency towards the Southern states.

Constitutional Amendment

A formal change or addition proposed or made to a constitution.

Andrew Johnson

The 17th President of the United States who served from 1865 to 1869, following the assassination of Abraham Lincoln.