What is the main problem with the survey item below?       Experts from the Department of Justice have announced that foot patrols lead to more effective policing than reactive policing. Do you believe the police in your community should spend more time doing foot patrols?

What is the problem with the following survey item? How do you feel about Senator Blumenthal’s voting record on criminal justice bills?

In survey research, the term response rate refers to the number of people to whom the questionnaire was sent.

In the study by Klinesmith et al. (2006), the primary independent variable was _____.

When is the unit of analysis an individual?

The NCVS dataset contains information on _____.

How many micrometers is 6.0 km?

A researcher is interested in comparing steroid use between major league baseball players (a total population of 900 players), major league soccer players (a total population of 500 players), and major league lacrosse players (a total population of 200 players).  Unfortunately, she only has the resources to survey a total of 300 athletes.  She wants to use probability sampling and she wants to have an equal number of major league baseball, soccer, and lacrosse players.  Therefore, she should use_____.

The ideal number of participants in a focus group is:  

If a researcher is trying to obtain a sample that is representative of his target population, which of the following sampling techniques would be least appropriate?