Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Difference between groups through course of study
| Phase | Measurement | Mean Difference | SD of Difference | 95% Confidence Interval for Difference |
| 1 | Test Score | 0.493 | 2.921 | (-0.788, 1.774) |
| Confidence | -0.279 | 2.245 | (-1.287,0.728) | |
| 2 | Test Score | 0.188 | 2.391 | (-0.957, 1.332) |
| Confidence | -0.427 | 1.890 | (-1.354,0.500) | |
| 3 | Test Score | -0.243 | 2.869 | (-1.883, 1.397) |
| Confidence | 0.240 | 1.482 | (-0.627, 1.106) |
