# worksheet

## worksheet

• Submitted By: zek001
• Date Submitted: 04/10/2016 6:42 PM
• Category: Psychology
• Words: 1201
• Page: 5

Prepare a written response to the following questions.

Chapter 1

1. Explain and give an example for each of the following types of variables:

a. Nominal: Are categorical variables that have been coded or converted to a numerical value. Examples of nominal variables include sex, race, marital status, and other demographic or personal information. A person demographic location is often identified as a postal zip code.

b. Ordinal: An ordinal variable is a categorical variable for which the possible values are ordered. An example would be the categorization of the educational level:
1: elementary school
2: middle school
3: High school
c. Interval: An interval variable: An interval variable is similar to an ordinal variable, but the intervals between the values of the interval variable are equally spaced. For example, suppose you have a variable such as annual income that is measured in dollars, and we have three people who make \$10,000, \$15,000 and \$20,000 those incomes are equally spaced apart.

d. Ratio scale: Ratio scales are similar to interval scales but ratio scales have a true zero. An example would be the difference between 60 and 50 seconds is the same as the difference between 20 and 10 seconds. Bothe examples have an equal distance.

e. Continuous: A continuous variable is measured along a continuum and can thus be a fractional unit. An example would be the time it takes a person to solve a particular math problem i.e, it took John 2.37 seconds to complete the problem.

f. Discrete: Is a variable that is measured in whole units such as the number of siblings you a person has. The units or categories are not distinguished along a continuum.

g. Quantitative: Quantitative variables vary by amount and measured numerically. This includes continuous and discrete variables. An example could be the number of calories a person consumes each day or the number of pieces of food you eat per day.

h. Qualitative: These...