A few options in SPSS to compute (transform)
data, recode data, and Select cases.
Transform—Compute
variable…And then you have to indicate the specific
operation. Let’s assume that you want to add a constant “5”, then
you name the new variable, and indicate the operation in the window to the
right.
Transform—Recode
into different variables. You have to
indicate the “old values” (i.e., the current values) and the “new values”. You
can use this option is to want to dichotomize variables (i.e., more than 11
would be “high” and 11 or less would be “low”)
Data—Select cases. And you indicate the condition to select the cases. (The “non-selected”
cases will be marked with a diagonal line.)
How to obtain the following statistics in SPSS
1. Central Tendency
Mean:
Analyze-Descriptive
Stats-Descriptive
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button; i.e., not by default)
(Note: The
“Explore” option also allows you to obtain the averages across different
groups; e.g., levels of an independent variable or factor; the same idea
applies to other statistics.)
Median:
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Mode:
Analyze-Descriptive
Stats-Frequencies (Stats button)
5% Trimmed
mean:
Analyze-Descriptive
Stats-Explore
Robust
stats of central tendency:
Analyze-Descriptive
Stats-Explore (Stats button—M estimators)
2. Variability
Standard
deviation
Analyze-Descriptive
Stats-Descriptive
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Variance
Analyze-Descriptive
Stats-Descriptive
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Inter-quartile
range
Analyze-Descriptive
Stats-Explore
Range
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Analyze-Descriptive
Stats-Descriptive (Options button)
3. Shape of the distribution
Skewness
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Analyze-Descriptive
Stats-Descriptive (Options button)
Kurtosis
Analyze-Descriptive
Stats-Explore
Analyze-Descriptive
Stats-Frequencies (Stats button)
Analyze-Descriptive
Stats-Descriptive (Options button)
4. Individual Position
Percentiles:
Analyze-Descriptive
Stats-Explore (Stats
button—click on Percentiles; there is a list of common percentiles)
Analyze-Descriptive
Stats-Frequencies (Stats button)
Standard
scores:
Analyze-Descriptive
Stats-Descriptive (click the option to save the standarized
scores, just below the left-most list)
Standard
scores:
5. Correlation and regression
Correlation (bivariate) for quantitative
variables
Analyze-Correlate-Bivariate
Correlation (partial correlations) for
quantitative variables
Analyze-Correlate-Partial
Correlation (partial correlations) for
quantitative variables
Analyze-Correlate-Partial
Correlation (bivariate) for ordinal variables
Analyze-Correlate-Bivariate
(Click on the Spearman coefficient)
Correlation (bivariate) for nominal variables
Analyze-Descriptive-Crosstabs
(Stats button and choose phi/Cramer)
Linear Regression (both bivariate and
multivariate)
Analyze-Regression-Linear
How to get the following graphs in SPSS
(of course, we can use the Graph menu…but this is not
necessary in the following cases)
Bar
Chart—Analyze-Descriptive Stats-Frequencies (Plots button)
Pie
Chart—Analyze-Descriptive Stats-Frequencies (Plots button)
Histogram—Analyze-Descriptive
Stats-Frequencies (Plots button)
(Note that
“Frequencies” also presents by default a Frequency table.)
Stef-and-Leaf
diagram— Analyze-Descriptive Stats-Explore
Box-and-Whiskers
diagram—Analyze-Descriptive Stats-Explore