This Sample Size Calculator is presented as a public service of Creative Research Systems survey software. You can use it to determine how many people you need to interview in order to get results that reflect the target population as precisely as needed. You can also find the level of precision you have in an existing sample...

SurveyMonkey is an online survey development cloud-based software as a service company. It was founded in 1999 by Ryan Finley and Chris Finley.

Manage event registrations, create a quick opinion poll, and much more. With Google Forms, you can create and analyze surveys right in your mobile or web browser—no special software required...

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GNU PSPP is a program for statistical analysis of sampled data. It is a free as in freedom replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions.

jamovi is a new “3rd generation” statistical spreadsheet. designed from the ground up to be easy to use, jamovi is a compelling alternative to costly statistical products such as SPSS and SAS.

TAGUETTE is an open-source web-based document tagging tool for qualitative data analysis.

Using this tool, you can upload a collection of documents, create a hierarchy of tags, and annotate portions of documents with tags and notes that you can recall and organize later.