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Week 4 SW 242
Design of quantitative survey instruments
Use discrete categories
What kinds of questions would be considered sensitive
How to get people to answer sensitive questions: use categories, make the maximum number very high, use an intro to the question that makes it less threatening (e.g. some people..)
Class exercise: Questionnaire construction
Descriptive Statistics
Terminology: Define the following terms:
Variables:
Independent (predictor) variables:
Dependent (criterion, outcome) variable:
Control/extraneous variables
Categorical variables:
Continuous variables
Demographic questionnaires yield descriptive statistics
Descriptive statistics provide summary information on your sample. For example, the average age, the racial/ethnic groups in the sample, the immigrant status of the sample, the income level, etc.)
Why do we need summary information on a sample?
There are THREE overall types of descriptive statistics
Frequency: rate at which a value for a variable occurs. Frequencies are typically expressed as a number (count) and a proportion or percentage (level of measurement is nominal or ordinal) What type of questions on a demographic questionnaire would generate a frequency?
Measures of Central Tendency (Mode, Median, Mean) (level of measurement continuous) What type of questions on a demographic questionnaire would generate a measure of central tendency?
Measures of Variability (level of measurement continuous) What type of questions on a demographic questionnaire would generate a measure of variability?
SPSS class exercises on descriptive statistics (see next pages) Group Exercise:
Questionnaire Construction:
Assessing Key Demographic and Socioeconomic Variables
Within your group discuss the best way to assess the following key demographic and socioeconomic variables (either set of variables A or set of variables B). Be prepared to discuss your question choices with the class.
A Variables B Variables
SPSS Exercise: Please provide the following information:
ID #Approximate number of miles you commute to 91 Field of practice (please choose one):
1. Schools,
2. Health/Mental Health,
3. Children, Youth, and Families,
4. Aging, or
5. Undecided1.2.3.4.5.6.78.910.11.12.13.14.15.16.17.18.19. 20. 21.22.23.24.25. 26.
Household Composition (who lives in the household)
Gender
Race/Ethnicity
Employment Status
Primary Language
Age
Marital Status
Education
Occupation
Income
Socioeconomic Status
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