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Exam 1: Introduction

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Question 51

Multiple Choice

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When numbers are used as substitutes for names, the numbers constitute a(n) variable.

A) qualitative
B) quantitative
C) extraneous
D) independent.

E) C) and D)
F) B) and D)

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verified

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Question 52

True/False

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The numbers from a nominal scale convey concepts of greater than and less than.

A) True
B) False

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Question 53

Multiple Choice

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Data Set 1-6: 18. Kaycee was interested in social loafing, which is that individuals do less work in groups than they do when working alone. For her Research Methods project, all participants worked in a group with two others. The task was to find words in a square display of letters. Some participants were told they would be scored individually and some were told that their effort would add to the group score. The actual analysis was on the number of words found by a group. -In Data Set 1-6, the fact that some participants believed they would be scored individually and some believed their effort would add to the group score is the

A statistics student is interested in determining whether studying in the room the class is held in improves scores on exams. She has half a class study in their normal classroom seats and half study in other places. In this experiment, an example of an extraneous variable would be

When the word "statistics" first began to be used it referred to

An educational psychologist wanted to know the effects of four different methods of teaching arithmetic. Using 12 classrooms, each method was used in the classes. At the end of the school year, all the pupils took the same achievement test, and the means for groups receiving different methods were compared. Answer the following questions about the study. a. What was the dependent variable? b. What was the independent variable? c. What was a controlled variable? d. Give an example of a parameter.

Variables are concepts that exist in more than one amount or more than one form.

You never have a lower and an upper limit for a(n)

Your text says the simplest way to control an extraneous variable is to

The writer of a statistical analysis should use ________ style writing.

Match these measurement scales with their examples below. -the number of this test question

Your text said that the end point of analyzing a data set is

Match these measurement scales with the examples below. -a bank statement balance

The three steps your text recommended when you analyze a data set are:

Inferential statistics allows a researcher to

The chapters in your textbook begin with a list of objectives.

The techniques of statistics are used in

Epistemology deals with the nature of

Identify each measurement below as being based on a quantitative or qualitative variable. For quantitative variables identify the lower and upper limits of the measurement. Kind of variable Limits -309.23, the designation foran adjustment disorder with academic inhibition

Using four scales of measurement described in your text, identify each item: -a completely new temperature scale on which 0 is a burning test paper