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Chapter 3: Q.18 (page 161)

Teaching and research A college newspaper interviews a psychologist about student ratings of the teaching of faculty members. The psychologist says, 鈥淭he evidence indicates that the correlation between the research productivity and teaching rating of faculty members is close to zero.鈥� The paper reports this as 鈥淧rofessor McDaniel said that good researchers tend to be poor teachers, and vice versa.鈥� Explain why the paper鈥檚 report is wrong. Write a statement in plain language (don鈥檛 use the word 鈥渃orrelation鈥�) to explain the psychologist鈥檚 meaning.

Short Answer

Expert verified

Faculty members' research output and teaching scores are unrelated.(or do not influence each other).

Step by step solution

01

Given Information

A college newspaper interviews a psychologist about student ratings of the teaching of faculty members. The psychologist says, 鈥淭he evidence indicates that the correlation between the research productivity and teaching rating of faculty members is close to zero.鈥�

02

Explanation

Research output and faculty teaching evaluations are unrelated due to the zero-value (or have no influence on one another).

As a result, more research output does not automatically reflect improved or worsened instruction. Faculty who aren't as prolific in their research confront comparable difficulties.

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Most popular questions from this chapter

Dem bones Archaeopteryx is an extinct beast having feathers like a bird but teeth and a long bony tail like a reptile. Only six fossil specimens are known. Because these specimens differ greatly in size, some scientists think they are different species rather than individuals from the same species. We will examine some data. If the specimens belong to the same species and differ in size because some are younger than others, there should be a positive linear relationship between the lengths of a pair of bones from all individuals. An outlier from this relationship would suggest a different species. Here are data on the lengths in centimeters of the femur (a leg bone) and the humerus (a bone in the upper arm) for the five specimens that preserve both bones:

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(a) The correlation for all 50 states in the figure is 0.408 If we leave out Hawaii, would the correlation increase, decrease, or stay the same? Explain.

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