Test Bank
How To Use SPSS Statistics, 10th Ed.
Chapter 3: Descriptive Statistics
1. The click sequence to get to the Frequencies command is:
a. Analyze → Reports → Frequencies
2. In the output, valid percent and cumulative percentage are calculated using:
a. nominal data.
b. descriptive statistics.
3. Percentiles are appropriate for which kinds of data (select all that apply):
a. Nominal
4. It would be appropriate to find the percentiles for which of the following variables?
d. Political affiliation
e. Last name
5. In the Frequencies dialog box, after selecting your variable you should:
a. uncheck the Display Frequencies box and then click OK.
6. In the Frequencies dialog box, the Statistics button allows you to:
I. select which percentiles you want calculated, including quartiles.
II. select which percentiles you want calculated except quartiles.
III. select which measures of central tendency you want calculated.
IV. select which measures of dispersion (spread) you want calculated.
a. I only
b. II only
7. Under the Frequency command in SPSS, if you wanted to find the 11th and 88th
percentiles of a set of GRE scores, you would:
d. click the boxes for 11th and 88th percentile in the Frequencies dialog box.
8. The SPSS command sequence for creating a contingency table is:
a. Data → Descriptive Statistics → Crosstabs
9. Contingency tables (crosstabs) allow you to compare:
a. descriptive statistics.
b. only two variables.
10. Which variable would it be appropriate to calculate a numerical measure of central
tendency (e.g., mean, median)?
d. Political affiliation
e. Last name
11. Which of the following is/are an assumption(s) for calculating a mean?
I. Requires interval or ratio data.
II. Requires ordinal, interval, or ratio data.
III. Requires a perfectly normal distribution of the data.
IV. Requires an approximately normal distribution of the data.
V. Requires highly skewed data.
a. I
b. II
12. Which of the following is/are an assumption(s) for calculating a median?
I. Requires interval or ratio data.
II. Requires ordinal, interval, or ratio data.
III. Requires a perfectly normal distribution of the data.
IV. Requires an approximately normal distribution of the data.
V. Requires highly skewed data.
a. I
13. Which of the following is/are an assumption(s) for calculating a standard deviation?
I. Requires interval or ratio data.
II. Requires ordinal, interval, or ratio data.
III. Requires a perfectly normal distribution of the data.
IV. Requires an approximately normal distribution of the data.
V. Requires highly skewed data.
a. I
b. II
14. Which of the following is/are true about reporting descriptive statistics? (select all that
apply)
a. When you report a median, you should always report the range and the interquartile
range.
15. Which of the following is/are INCORRECT about finding descriptive statistics for a
subset(s) of your data?
a. The Means command is designed to report descriptive statistics for subsets of your
data.
16. Z-scores are based on:
a. the mean distribution.
17. Calculating z-scores in SPSS requires:
e. knowing the mean of the variable(s).
f. knowing the standard deviation of the variable(s).