Quiz #1 - Chapter 1 - Variables & Measurement Scales

Question 1

Which of the following is a continuous variable?

1. Shoe size
2. Speed in miles per hour
3. The number of people in a household
4. Placements in a competition (1st, 2nd, 3rd, etc.)

Answer 1

2. Speed in miles per hour

Question 2

Which of the following is a discrete variable?

1. Weight
2. GPA
3. Response time
4. Gender

Answer 2

4. Gender

Question 3

Which of the following variables is measured on an ordinal scale (i.e., an ordinal variable)?

1. Response time
2. Political party affiliation (Republican, Democrat, Independent, etc.)
3. Number of days spent in hospital
4. Competition placing (Gold, Silver, Bronze)

Answer 3

4. Competition placing (Gold, Silver, Bronze)

Question 4

Which of the following variables is measured on a nominal scale (i.e., a nominal variable)?

1. Doctor-reported health level (poor, fair, good, excellent)
2. Education level
3. Celsius temperature
4. Type of living accommodation (House, Apartment, Trailer)

Answer 4

4. Type of living accommodation (House, Apartment, Trailer)

Question 5

Which of the following variables is measured on a numeric scale (i.e., a numeric variable)?

1. Major
2. Ethnicity
3. Price of dining hall meal
4. Year in College (e.g., freshman, sophomore etc.)

Answer 5

3. Price of dining hall meal

Question 6

A study interested in the effect of students’ perceived utility of the course on their course performance asked students at the beginning of the quarter how useful they think the course is going to be.

Students indicated their perceived utility of the course using a 5-point Likert-type rating scale ranging from 1 (“Not useful at all”) to 5 (“Extremly useful”). Which level of measurement describes this variable?

1. Nominal variable
2. Quasi-Interval
3. Interval variable

Answer 6

2. Quasi-Interval

Question 7

A researcher is interested in studying the effects of sleep on college students’ grades in the United States. Thus, this researcher collected responses from a total of 100 UCLA students in order to assess whether sleep affects the grades of college students.

What is the SAMPLE in this research?

1. College students across the world
2. All college students at UCLA
3. College students in the United States
4. 100 college students at UCLA

Answer 7

4. 100 college students at UCLA

Question 8

A researcher is interested in studying the effects of sleep on college students’ grades in the United States. Thus, this researcher collected responses from a total of 100 UCLA students in order to assess whether sleep affects the grades of college students.

What is the POPULATION in this research?

1. College students across the world
2. All college students at UCLA
3. College students in the United States
4. 100 college students at UCLA

Answer 8

3. College students in the United States

Question 9

True or false? Nominal and ordinal variables can be discrete, but interval and ratio variables cannot be discrete.

1. True
2. False

Answer 9

2. False

Question 10

Which of the following variables is considered to be a continuous variable?

1. Self-reported health (poor, fair, good, excellent)
2. SAT scores
3. Type of living accommodation (House, Apartment, Trailer)
4. Blood type

Answer 10

2. SAT scores

Question 11

A researcher asks you to report the number of minutes that you studied for your stats class yesterday. In this case, the researcher is measuring the variable of studying on a(n) ___________ scale.

1. Nominal
2. Quasi-Interval
3. Ordinal
4. Ratio

Answer 11

4. Ratio