Log in to start analyzing data.

Sample Selector

Sample Selector is a tool for creating and editing samples, or groups of data you compare across—they're not "samples" in the statistical sense, but more like filters.

By default, a single sample exists: "All Data". With the Sample Selector, you can create new samples to organize your data.

You can use samples to:

A sample is composed of one or more filters, specific conditions that narrow down your sample.

Creating a sample

The general process for creating a sample is to:

The effect of multiple filters

DataShop interprets each filter after the first as an additional restriction on the data that is included in the sample. This is also known as a logical "AND". You can see the results of multiple filters in the sample preview as soon as all filters are "saved".


Rummel - Improving Algebra Learning and Collaboration (private) (gold star) (terms of use)

Datasets Terms of Use

Nikol Rummel
Data Provider
Steve Ritter


Separate tags with commas.
External Links

Dataset Area/ Subject Dates Data Last Modified Transactions KC Models Status Papers
Math/ Algebra Mar 13, 2006 - Apr 7, 2006 Jun 14, 2007 41,987 3 complete 3
Math/ Algebra Oct 20, 2008 - May 19, 2009 May 21, 2009 10,229 2 complete 0
Version 10.11.2 July 14, 2022