Table 3.
Means and SDs for sleep health efficacy variables at time 1, time 2, and difference scores.
| Sleep health efficacy | Condition | DS | T1 | T2 | |
|---|---|---|---|---|---|
| Healthy bed routine* | Sleep Smart group | M (SD) | .10 (.39) | .51 (.30) | .62 (.28) |
| Comparison group | M (SD) | −.02 (.31) | .61 (.32) | .59 (.35) | |
| At least 8.5 hours** | Sleep Smart group | M (SD) | .06 (.35) | .63 (.32) | .69 (.31) |
| Comparison group | M (SD) | −.10 (.26) | .72 (.30) | .62 (.33) | |
| Healthy sleep habits* | Sleep Smart group | M (SD) | .04 (.28) | .63 (.28) | .67 (.27) |
| Comparison group | M (SD) | −.06 (.32) | .74 (.27) | .67 (.31) | |
| Avoid energetic activities | Sleep Smart group | M (SD) | .04 (.37) | .33 (.32) | .37 (.34) |
| Comparison group | M (SD) | −.02 (.34) | .42 (.35) | .40 (.35) | |
| Avoid caffeine** | Sleep Smart group | M (SD) | .09 (.45) | .46 (.34) | .55 (.36) |
| Comparison group | M (SD) | −.09 (.39) | .63 (.31) | .54 (.37) | |
| Regular BT schedule** | Sleep Smart group | M (SD) | .10 (.39) | .59 (.31) | .68 (.27) |
| Comparison group | M (SD) | −.06 (.35) | .70 (.33) | .64 (.34) |
Abbreviation: DS, difference score from T1 to T2.
Note: Variables represent how participants rated each sleep health efficacy question according to how sure they were that they could handle each behavior on 100% scale. This difference was not significant from T1 to T4.
*
P ≤ .05.
**
P ≤ .01.