Deck 10: Measurement and Descriptive Statistics

Question 1

Match the scale of measurement with the variable. You may use the same scale of measurement more than once.

-Ethnicity (5 categories).

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Answer 1

Nominal

Question 2

Match the scale of measurement with the variable. You may use the same scale of measurement more than once.

-Percentile rank in high school.

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Answer 2

Ordinal

Question 3

Match the scale of measurement with the variable. You may use the same scale of measurement more than once.

-Self-concept score (assume summated Likert scale)

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Answer 3

Normal

Question 4

Match the scale of measurement with the variable. You may use the same scale of measurement more than once.

-Gender.

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 5

Match the scale of measurement with the variable. You may use the same scale of measurement more than once.

-Weight (e.g., 2.2 lbs or 180 lbs).

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 6

Match the example with the scale of measurement. Use above choices.

-Dan's study compared four religions. This scale is:

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 7

Match the example with the scale of measurement. Use above choices.

-ROTC cadets are ranked by commanders from 1^st to last. This scale is:

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 8

Match the example with the scale of measurement. Use above choices.

-Barbie Doll's scale of "zippiness" rates people from 1 = "strongly disagree" a) to 5 = "strongly agree." This scale is:

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 9

Match the example with the scale of measurement. Use above choices.

-Sally wants to determine whether the piggy banks of children are blue or green. The scale is:

A) Nominal
B) Ordinal
C) Normal
D) Dichotomous

Question 10

The standard deviation is an appropriate descriptive statistic when one is measuring
________ and has a ________ variable. Pick one that applies.

A) frequency/nominal
B) central tendency/ordinal
C) variability/normally distributed
D) quantitative data/all four scales
E) none of the above

Question 11

Clark Kent wants to study how these training approaches (no training, kryptonite training, and the new super-kryptonite training) affect performance. He is confused as to what scale of measurement he is using with his IV. Help him out with the correct

A) nominal
B) ordinal
C) normal
D) Clark should give up and stick to flying!

Question 12

A researcher wanted to know how many red or white or blue shirts were worn at the 16^th street mall in Denver on the 4^th of July. What type of scale did the researcher use?

A) nominal
B) ordinal
C) normal
D) dichotomous

Question 13

Properties of a normal curve include:

A) One hump in the middle of its distribution that is the most frequent value
B) The curve is not highly skewed
C) A mean, median, and mode that are about equal
D) All of the above

Question 14

The normal curve:

A) Is a frequency distribution
B) Is a probability distribution
C) Has a finite range
D) a and b

Question 15

The following is/are true for the nominal level of measurement:

A) It is meaningful to obtain a frequency distribution and a bar chart
B) It is meaningful to obtain a mean, median, and mode
C) It is meaningful to obtain an interquartile range
D) a and c

Question 16

The following is/are true for the ordinal level of measurement:

A) It is usually useful to obtain a frequency distribution or bar chart
B) It is usually useful to obtain a mean, median, and mode
C) It is usually useful to obtain a standard deviation
D) All of the above

Question 17

The following is/are true for the normal level of measurement:

A) It is meaningful to obtain a frequency distribution or bar chart
B) It is meaningful to obtain a mean, median, and mode
C) It is meaningful to obtain a standard deviation
D) All of the above

Question 18

Numerals assigned to nominal variables have no implied order or weight.

Question 19

Descriptive statistics cannot be used to summarize nominal level data.

Question 20

Ordinal scales have ranked, unequal intervals and are skewed.

Question 21

Most psychological measurements are ratio scales.

Question 22

Different statistics are required for variables with normal scales.

Question 23

Nominal variables have three or more unordered categories.

Question 24

Nominal variables and dichotomous variables are always treated the same.

Question 25

Normal variables have an approximately normal frequency distribution.

Question 26

The range of a normal curve is infinite: the extremes approach, but do not touch the X axis.

Question 27

All normal curves can be divided into areas in terms of the standard deviation.

Question 28

Approximately 34% of the area under the normal curve is between the mean and one standard deviation above the mean.

Question 29

There is a high probability that values will fall outside two standard deviations of a normal curve's mean.

Question 30

All normal curves can be converted to standard normal curves by setting the mean at 0 and the standard deviation at 1.

Question 31

Researchers should use statistics that are consistent with the data's level of measurement.

Question 32

Give an example of a nominal, dichotomous, ordinal, and normal variables.

Question 33

What are the properties of the normal curve?