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".


AlgCK_study_2020 (private)

Datasets Terms of Use

Tomohiro Nagashima
Data Provider
Algebra study conducted by UW Madison colleagues


Separate tags with commas.
External Links

Dataset Area/ Subject Dates Data Last Modified Transactions KC Models Status
Nov 4, 2020 - Jan 30, 2022 Feb 1, 2022 44,623 7
Math/ Algebra Nov 4, 2020 - May 19, 2021 May 29, 2021 31,642 6
Math/ Algebra Nov 4, 2020 - May 19, 2021 Jul 27, 2021 31,642 3
Math/ Algebra Nov 4, 2020 - May 19, 2021 Jul 28, 2021 31,642 6
Version 10.10.1 February 18, 2022