Exhibit 1-4 in Many Universities, Students Evaluate Their Professors by Means of Means

question 92

Multiple Choice

Exhibit 1-4
In many universities, students evaluate their professors by means of answering a questionnaire. Assume a questionnaire is distributed to a class of 45 students. Students are asked to answer the following:
1. Sex
2. Race (African descent, Caucasian, Other)
3. Age
4. Number of hours completed
5. Grade point average
6. My instructor is a very effective teacher
-Refer to Exhibit 1-4. How many variables are in this data set?

• A)3
• B)4
• C)5
• D)6

---

Definitions:

Piaget

A Swiss psychologist known for his pioneering work in developmental psychology, especially his theory of cognitive development in children.

Object Permanence

The cognition that objects still exist even when they are no longer perceivable through sight, hearing, or other senses.

Conservation

Conservation is a principle in cognitive development, identified by Jean Piaget, referring to a child's ability to recognize that certain properties of objects, like volume and number, can remain the same despite changes in the form or arrangement of those objects.

Egocentrism

A cognitive characteristic where an individual has difficulty understanding or considering perspectives other than their own.