Please answer the following questions to the best of your ability on this document and upload it
as a PDF on the 2GW online platform. Make sure that your name appears on your submission
(see instructions on the Final E
...
Please answer the following questions to the best of your ability on this document and upload it
as a PDF on the 2GW online platform. Make sure that your name appears on your submission
(see instructions on the Final Exam page in the Assignments section). You may use your notes,
your book, or any other fixed written sources as you work on this. But please work alone on this
assignment, and direct any questions or concerns to your course director or section leader. Good
luck!
1. What is a codebook? Who might create one, what would she or he include in it, and what
purpose or purposes would it serve?
A codebook is a separate document such as a Word document or Excel spreadsheet that
stores all the critical information about the data. It includes the variables, name of the
variables, a brief description of the variables, questionnaire items, a sentence explaining
what each variable represents, and an explanation of each numerical code. A codebook
serves as a record that we can refer to if we cannot remember what was in the dataset.
2. Explain the distinction between variable labels and value labels in an electronic dataset.
Variable labels describe what that variable is or what it represents. Value labels describe
coded data (numbers) within a variable. For example, education levels could have the
variable label “Education,” and the values labels would describe the numbers associated
with a certain level of education.
3. True or False: The linear regression model cannot handle curvilinear relationships between
independent and dependent variables.
False
4. True or False: By convention, if we conduct a statistical hypothesis test and obtain a p-value
of .3, we would reject the null hypothesis.
True
5. Suppose you have two SPSS datasets. The first contains the variables ID, X1, X2, and X3 for
participants 1 through 100; the second contains the variables ID, X4, X5, and X6 for the same
100 participants. Suppose that the datasets are named EvalPre.sav and EvalPost.sav, and are
saved on your computer in following file location:
C:\Documents and Settings\Evaluation\EvalData\
And suppose, finally, that you want to combine these datasets to create a new dataset, to be
named EvalPrePost.sav, containing ID and X1 through X6 for all 100 participants. What SPSS
syntax would you use to accomplish this?
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