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Sample Files
debate.sav. This is a hypothetical data file that concerns paired responses to a survey from
attendeesof a political debate before and after the debate. Eachcase c orrespondsto a separate
respondent.
debate_aggregate.sav. This is a hypotheticaldata file that aggregates the responses in
debate.sav. Each case corresponds to a cross-classification of preference before and after
the debate.
demo.sav. Thisis a hypothetical data file that concerns a purchased customer database, for
the purpose of mailing monthly offers. Whether or not the customer responded to the offer
is recorded, along with various demographic information.
demo_cs_1.sav. This is a hypothetical data file that concerns the first step of a company’s
efforts to compile a database of survey information. Each case corresponds to a different city,
and the region, province, district, and city identification are recorded.
demo_cs_2.sav. Thisis ahypothetical data file th at concerns the second step of a company’s
efforts tocompile a database of survey information. Each case corresponds to a different
household unit from cities selected in thefirst step , and the region, province, district, city,
subdivision, and unit identificationare recorded. The sampling information from the first
two stages of the design is also included.
demo_cs.sav. Thisis a hypothetical data file that contains survey information collected using a
complex sampling design. Each case corresponds to a different household unit, and various
demographic and sampling informationis recorded.
dmdata.sav. This is a hypotheticaldata file that contains demographic and purchasing
informationfor a direct marketing company. dmdata2.sav contains information for a subset of
contacts that received a test mailing, and dmdata3.sav contains information on the remaining
contacts who did not receive the test mailing.
dietstudy.sav. Thishypothetical data file contains the results of a study of the “Stillman diet”
(Rickman, Mitchell, Dingman, and Dalen, 1974). Each case corresponds to a separate
subject and records his or her pre- and post-diet weights in pounds and triglyceride levels
in mg/100 ml.
dvdplayer.sav. Thisis a hypothetical data file that concerns the development of a new DVD
player. Using a prototype, the marketing team has collected focus group data. Each case
corresponds to a separate surveyed user and records some demographic information about
them and their responses to questions aboutthe prototype.
german_credit.sav. Thisdata file is taken from the “German credit” dataset in the Repository of
Machine Learning Databases (Blake and Merz, 1998) at the University of California, Irvine.
grocery_1month.sav. Thishypothetical data file is the grocery_coupons.sav data file with the
weekly purchases “rolled-up” so that each case corresponds to a separate customer. Some of
the variables thatchanged weekly disappear as a result, and the amount spent recorded is now
the sum of the amounts spent during the four weeks of the study.
grocery_coupons.sav. Thisis a hypothetical data file that contains survey data collected by
a grocery store chain interested in the purchasing habits of their customers. Each customer
is followed for four weeks, and each case corresponds to a separate customer-week and
records information about whereand how the customer shops, including how much was
spent on groceries during that week.