Data Collectionhard
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A randomized trial of an online study program assigned 800 students to treatment (n=400) or control (n=400). Due to technical barriers, only 280 of the 400 treatment-group students actually completed the program.
Results:
| Analysis | Sample Size | GPA Gain | 95% CI | p-value |
|---|---|---|---|---|
| Intent-to-Treat (all 400) | 400 | +0.25 | [+0.10, +0.40] | 0.001 |
| Per-Protocol (280 completers) | 280 | +0.40 | [+0.22, +0.58] | <0.001 |
Which statements are correct?
A randomized trial of an online study program assigned 800 students to treatment (n=400) or control (n=400). Due to technical barriers, only 280 of the 400 treatment-group students actually completed the program.
Results:
| Analysis | Sample Size | GPA Gain | 95% CI | p-value | |---|---|---|---|---| | Intent-to-Treat (all 400) | 400 | +0.25 | [+0.10, +0.40] | 0.001 | | Per-Protocol (280 completers) | 280 | +0.40 | [+0.22, +0.58] | <0.001 |
Which statements are correct?