The purpose of Singlecase.org is to provide researchers with a tool for assessing
and improving their skills at visual analysis of single-case research designs.
Three sets of graphs (53 ABAB, 47 Multiple Baseline, 36 Alternating Treatments)
are provided. Each graph is to be rated in terms of (a) demonstrating a functional
relation and (b) demonstrating a clinical effect. Ratings are compared with national
experts.
The site is for any individual wishing to assess their visual analysis skills or individuals
who teach single-case methods and want to coordinate a class of students who may all use
the site as part of the class (as an assignment, or activity).
There is no cost for using the site
You may use Singlecase.org either as a "Single User" or as a "Coordinator."
Single User: To use the site as a Single User, simply enter a name in the "name" dialog box, and "demo" in the Class Code box. Read the description that appears on the next page, and click "continue." You will then be presented with access to three sets of graphs. Select a set of graphs, and go through entering your assessment of (a) the degree to which the full set of data in the graph document a functional relation for the research question posed (using a 1-7 scale), and (b) the extent to which the magnitude of effect is judged as being socially significant (using a 1-7 scale). Note: you may skip the social significance coding, but not the functional relation codes. When you complete coding all graphs in a graph type (MBL, AT, ABAB) a summary will appear that gives you (a) the correlation of your ratings with the median score of a set of national experts, (b) the percentage of graphs that you rated exactly as the median of the experts, (c) the percentage of graphs that you rated within one point of the experts and (d) the percentage of graphs that you rated two or more points differently from experts. The summary also provides a listing of all graphs in each category, and if you hover over the number for a graph it will appear with your score and the expert score.
Once you complete a set of graphs, you may print your output, or email it to someone. When you close the site, however, the data will no longer be available. You are welcome to repeat review of the graphs until you achieve a level of expertise that meets your personal standard. If, however, you stop coding a set of graphs part-way through the list of graphs, you will not be able to re-enter where you left off. You will need to start over.
Coordinator: For individuals who teach single-case methods, it may be helpful to coordinate a class of students who may all use the site as part of the class (as an assignment, or activity). The "coordinator" function is designed to facilitate this role. Anyone teaching single-case methods may contact Rob Horner (robh@uoregon.edu) to obtain coordinator access. A coordinator will be given a specific "Class Code" and Coordinator password. The coordinator will specify a time period during which students will use the site. A start date and end date will be specified. Students will enter the site by entering their name and the class code. They will complete the evaluation of the graphs, and have the option of printing, emailing or simply leaving their data on the site. The coordinator may enter the site using his/her password and download a summary report indicating (a) student name, (b) date site was used, (c) time to complete the graph reviews and (d) summary percentage.
Note that students will not be able to enter data into the site after the End date specified by the Coordinator. Coordinators should download their class files as these files will be purged annually.
Content for this site was developed by Swoboda, C., Kratochwill, T.,
Horner, R., Levin, J., and Albin, R., (2012). Visual Analysis
Training Protocol: Applications with the Alternating Treatment,
Multiple Baseline, and ABAB Designs (available from authors).
By using the Singlecase.org website all users are approving the sharing
of all entered data in anonymous format for research and evaluation
purposes by the Local Coordinator, or National Coordinator. All use of
evaluation data will follow the ethical and professional standards of
the American Psychological Association. All evaluation efforts will
also comply with the Family Education Rights and Privacy Act
(343 CFR 99.31 (6)) and human subjects regulations (Protection of
Human Subjects 45 CFR 46). It is further understood that this consent
may be withdrawn at any time by notifying the National Coordinator.
