DataShop @CMU

Table of Contents

1. What is DataShop?
2. Getting Data In
   1. Logging New Data
   2. Importing New Data
      1. Tab-delimited format
      2. XML format
3. Accessing DataShop
   1. Requesting Dataset Access
4. Project / Dataset Administration
   1. IRB & Data Shareability
   2. Creating new Datasets from existing Samples
5. Citing DataShop and Datasets
6. Glossary
7. Reports
   1. Dataset Info
      1. Overview
      2. Samples
      3. KC Models
      4. Custom Fields
      5. Problem List
      6. Step List
      7. Problem Content
   2. Files
   3. Performance Profiler
   4. Error Report
   5. Learning Curve
      1. Examples
      2. Algorithm
      3. Student-Step Rollup
      4. Model Values
   6. Workflows
8. Filtering Data
   1. By student, KC, and problem
   2. Sample Selector
9. Export: Getting Data Out
   1. Export Format History
10. Using Other Tools
    1. External Tools
    2. R (software)
    3. Excel PivotTables
11. Advanced
    1. Web Services Credentials
       1. User Agreement
    2. Logging Activity
    3. Metrics
12. Examples
13. Contact Us

Step List

The step list table describes all problems in a dataset. It provides a detailed listing of problem hierarchy (the unit and section divisions that contain the problem) and composition (the steps that make up a problem). Rows in the step list table are ordered alphabetically by problem hierarchy, problem name, and problem step.

The column headings are described in detail below.

Problem Hierarchy

The curriculum location in which the problem appears. The depth of the hierarchy can vary between datasets. For example, some datasets specify only a unit and section curriculum, while others specify a module, unit, and section. In terms of the DataShop logging format, the "problem hierarchy" is the list of type - name values contained in the dataset level element of each context message. (See the context_message element in the Tutor Message guide for a description of how this data is logged).

Problem Name

The name of the problem.

Step Name

The name of the step within the problem, described as a interface selection and action. Multiple steps commonly appear within a problem.

To export the step list table:

1. Click the Export Step List button. Your browser will prompt you to select a folder in which to save the file.
2. Choose a location to save the file. The file is saved as a tab-delimited text file, which you can open in a spreadsheet editor.