Psychology 354 Homework 1

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Homework 1 Introduction to Statistics Be sure you have reviewed this module/week’s lesson and presentations before proceeding to the homework exercises. Number all responses. Review the “Homework Instructions: General” document for an example of how homework assignments must look. Homework 1 does not include any SPSS output and consists only of Part I. Part I: Concepts These questions cover the Nolan and Heinzen reading and end-of-chapter questions as well as basic SPSS functions covered in this module/week’s Green and Salkind reading and presentations. Fill in the blank with the appropriate word or words. 1. A statistic that uses sample data to make general estimates about the larger population is a(n) _inferential____ statistic. 2. A statistic that summarizes a group of numbers is a(n) _descriptive____ statistic. 3. A(n) _sample___ is a set of observations drawn from the larger group of interest. 4. The large group about which you want to know something is called a(n) __population____. 5. A five-star rating system for movies is a(n) _reliable_______ measure. 6. A person's political affiliation is a _valid_______ measure. 7. A(n) _ratio variable_______ is a variable that meets the criteria for an interval and ratio variable. 8. Discrete values that the independent variable can take on are called the ________ of the independent variable. 9. A variable that is manipulated to determine its effects on another variable is a(n) _ independent variable _______ variable. 10. A(n) __ confounding variable ______ variable makes it impossible to determine whether the independent variable is the cause of changes in the dependent variable. 11. _ Hypothesis testing _______ is the process of drawing conclusions about whether or not a particular relation between variables is supported by the data. 12.

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