Question 1

Define interval scale and provide an example.

Accepted Answer

Interval scales are the third type of measurement in quantitative research and involve the use of numbers with equal units of measurement. However, even though numbers are used, there is no true zero point on the scale. For example, most psychological and educational tests are based on an interval type of scale. An individual can obtain a range of scores on an IQ test, for example, 20-200, but can an IQ of zero be measured? Someone could theoretically score a zero, but the true score will not be known, or cannot be measured, because of the limitations of the instrument. Other examples of interval scales are test scores, even standard test scores such as national exams (ACT and SAT tests). There is the National Counselor Exam, NCE, for counselors and the Praxis II tests for teachers which both are based on an interval scale. Both tests are used to measure level of knowledge in their respective disciplines.

Question 2

Name the four types of measurement scales.

Accepted Answer

nominal, ordinal, ratio, and interval

Question 3

______ refers to how scores are distributed.

Accepted Answer

Distribution

Question 4

______ assumption required to complete inferential statistics states that scores are independent of each other.

Accepted Answer

A)   Normality
B)   Independence
C)   Homogeneity of variance
D)   Linearity

Question 5

______ assumption required to complete inferential statistics states that scores are normally distributed.

Accepted Answer

A)   Normality
B)   Independence
C)   Homogeneity of variance
D)   Linearity

Question 6

Visual methods that are used to describe the frequency distribution of a data set are referred to as ______.

Accepted Answer

A)   measures of central tendency
B)   measures of variability
C)   measures of relationship
D)   tables and graphs

Question 7

The scale which involves description and requires that we assign names or terms is referred to as ______.

Accepted Answer

A)   ordinal scale
B)   interval scale
C)   ratio scale
D)   nominal scale

Question 8

The mode is determined by counting the least frequent score in the distribution.

Accepted Answer

A) True 
 B)False

Question 9

Explain the characteristics of parametric inferential statistics seen in Table 7.4. Give the characteristic of each and give an example of two of them from a journal article.

Accepted Answer

The answer of Explain the characteristics of parametric inferential statistics...

Question 10

Descriptive statistics are used to describe the sample on which the study was conducted.

Accepted Answer

A) True 
 B)False

Question 11

Discuss the four levels of measurements. Definitions and an example of each.

Accepted Answer

The answer of Discuss the four levels of measurements. Definitions...

Question 12

A measurement of research in quantitative research involving the use of numbers with equal units of measurements is referred to as ______.

Accepted Answer

A)   ordinal scale
B)   interval scale
C)   ratio scale
D)   nominal scale

Question 13

Define statistics.

Accepted Answer

The answer of Define statistics....

Question 14

There are ______ identified scales identified that are used in quantitative research.

Accepted Answer

A)   five
B)   three
C)   four
D)   two

Question 15

Statistical methods that are used to describe or summarize how scores are dispersed are referred to as ______.

Accepted Answer

A)   measures of central tendency
B)   measures of variability
C)   measures of relationship
D)   tables and graphs

Question 16

Values in which one can perform certain mathematical operations and the distance between units is even are referred to as ______.

Accepted Answer

A)   numbers
B)   numerals
C)   random population
D)   constants

Question 17

Interval scales involve the use of numbers with equal units of measurement and there is a true zero point on the scale.

Accepted Answer

A) True 
 B)False

Question 18

The interval between 101 and 102 is the same as that between 104 and 105, this is indicative of which type of value?

Accepted Answer

A)   numbers
B)   numerals
C)   variables
D)   constants

Question 19

Discuss the measures of central tendency.

Accepted Answer

The answer of Discuss the measures of central tendency....

Question 20

The ratio is the least precise of all the scales and the one in which the least number of concise mathematical operations can be done.

Accepted Answer

A) True 
 B)False

Exam 7: Basics of Statistical Methods

Define interval scale and provide an example.

Name the four types of measurement scales.

______ refers to how scores are distributed.

______ assumption required to complete inferential statistics states that scores are independent of each other.

______ assumption required to complete inferential statistics states that scores are normally distributed.

Visual methods that are used to describe the frequency distribution of a data set are referred to as ______.

The scale which involves description and requires that we assign names or terms is referred to as ______.

The mode is determined by counting the least frequent score in the distribution.

Explain the characteristics of parametric inferential statistics seen in Table 7.4. Give the characteristic of each and give an example of two of them from a journal article.

Descriptive statistics are used to describe the sample on which the study was conducted.

Discuss the four levels of measurements. Definitions and an example of each.

A measurement of research in quantitative research involving the use of numbers with equal units of measurements is referred to as ______.

Define statistics.

There are ______ identified scales identified that are used in quantitative research.

Statistical methods that are used to describe or summarize how scores are dispersed are referred to as ______.

Values in which one can perform certain mathematical operations and the distance between units is even are referred to as ______.

Interval scales involve the use of numbers with equal units of measurement and there is a true zero point on the scale.

The interval between 101 and 102 is the same as that between 104 and 105, this is indicative of which type of value?

Discuss the measures of central tendency.

The ratio is the least precise of all the scales and the one in which the least number of concise mathematical operations can be done.