Review Questions for Chapters 1 – 5
Chapter 1
1.
What’s the difference between a sample and a population?
What do we call a characteristic
of a sample? What do we call a characteristic of a population?
2.
What is sampling error?
3.
What is the difference between descriptive and inferential statistics?
4.
What are the methods for obtaining observations and investigating relationships between
variables?
5.
What is a variable?
EXAMPLE: If I’m studying the effect of teaching style and student effort on PSY 295
grades, what is the IV? DV?
6.
What are the four scales of measurement?
7.
What is the “Order of operations”?
Chapter 2
8.
Briefly explain when and why you should use a grouped frequency distribution table instead
of a regular table.
9.
Briefly explain what information is available in a regular frequency distribution table that is
not available in a grouped table.
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10. For the following data, construct a grouped frequency distribution table. Include columns for
proportions, and percent.
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 Spring '08
 shea
 Standard Deviation, frequency distribution table, zscore

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