Click on the following links. Please note these will open in a new window.

Web Link 1: Pew Research Center Internet, Science & Tech Project

Description: Click on “Datasets” at the above site to get current statistics on Internet use and on the characteristics of Internet and other technology users.

Web Link 2: Pew Research Center U.S. Politics and Policy

Description: Click on “Methodology” for discussions of survey sampling.

Web Link 3: Research Randomizer

Description: One online site for generating random numbers.

Web Link 4: StatPac

Description: A commercial survey software site with tutorials on sampling and other survey procedures.

Web Link 5: Survey Sampling International

Description: A commercial site providing sampling services internationally

Web Link 6: World Association for Public Opinion Research

Description: Provides a code of professional ethics and practices at https://wapor.org/about-wapor/code-of-ethics/

Web Link 7: Council of American Survey Research Organizations

Description: Provides basic information on surveys and survey sampling.

Sample Size Calculators

Web Link 1: Sample Size Calculator

Web Link 2: Sample Size Calculator

Description: The above two websites will help you calculate a sample size given your inputs such as standard error, confidence interval, and homogeneity of the sample. Commercial survey sites such as SurveyMonkey can also help with sample size calculations.