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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".


Grounded Feedback Fraction Addition Tutor (private) (problem content)

Datasets Terms of Use

Eliane Stampfer
Data Provider


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Dataset Area/ Subject Dates Data Last Modified Transactions KC Models Status
Math/ Other Jan 1, 2006 - Sep 12, 2011 Dec 3, 2011 23,790 65 on-going (problem content)
Math/ Other Oct 31, 2011 - Nov 30, 2011 Mar 26, 2012 102,823 26 on-going (problem content)
Version 10.12.6 June 22, 2023