Research Article
A Preliminary Evaluation of the Physiological Mechanisms of Action for Sleep Restriction Therapy
Table 2
Nature and direction of change between baseline, treatment, and post-treatment for each sleep variable and participant.
| Sleep variables/participants | DFE | | Treatment | Posttreatment | AR | AO | Time | Level | Slope | Level | Slope |
| Sleep-onset latency | | | | | | | | | | 1 | 64 | 91.04 | −0.56ns | −34.28*** | 0.30ns | 7.27ns | 1.52ns | 1, 11 | 2 | 2 | 70 | 93.89 | −0.65** | 3.07ns | 0.46ns | 4.99ns | 0.10ns | 7 | 4 | 3 | 74 | 56.90 | 2.09ns | −69.77* | −2.72ns | 37.23ns | −2.22ns | 1 | 3 | 4 | 67 | 83.01 | −0.18ns | −31.35*** | 0.38ns | −71.90** | 33.30*** | 9 | 5 | 5 | 74 | 72.97 | −0.28ns | −18.93* | 0.34ns | −15.86ns | 0.43ns | 6, 10, 11 | 5 |
| Mean | n/a | 79.56 | 0.08 | −30.25 | −0.25 | −7.65 | 6.63 | n/a | n/a |
| Total wake time | | | | | | | | | | 1 | 63 | 89.99 | −0.71ns | −46.30*** | 0.52ns | 21.22ns | −0.43ns | 4 | 5 | 2 | 73 | 73.08 | 0.75ns | −155.94*** | −0.38ns | 8.22ns | −3.15ns | 14 | 5 | 3 | 72 | 59.70 | 1.89ns | −87.79** | −1.94ns | 43.12ns | −3.46ns | 3, 9 | 4 | 4 | 72 | 59.34 | −1.04ns | −140.16*** | 1.35ns | 60.47ns | −6.89ns | 8 | 0 | 5 | 79 | 47.73 | −0.58ns | −50.56* | 0.30ns | −37.65ns | 5.17ns | 9, 13 | 1 |
| Mean | n/a | 69.97 | 0.06 | −96.15 | −0.03 | 19.08 | −1.75 | n/a | n/a |
| Total sleep time | | | | | | | | | | 1 | 62 | 77.54 | 0.77ns | −65.55** | 0.48ns | −41.98ns | 14.89* | 14 | 5 | 2 | 71 | 61.44 | −4.57ns | −0.31ns | 6.19* | −109.06* | 9.09ns | 1, 10, 11 | 3 | 3 | 72 | 57.33 | −0.44ns | −134.33*** | 2.41ns | −63.32ns | 5.14ns | 1 | 5 | 4 | 71 | 24.79 | 1.15ns | −60.08* | −1.43ns | −41.27ns | 10.94ns | 6, 12 | 0 | 5 | 79 | 30.95 | 0.43ns | −17.26ns | −0.39ns | 35.12ns | 5.41ns | 5 | 2 |
| Mean | n/a | 50.41 | −0.53 | −55.51 | 1.45 | −44.10 | 9.09 | n/a | n/a |
| Sleep efficiency | | | | | | | | | | 1 | 61 | 89.89 | 0.20ns | 7.10** | −0.13ns | −3.83ns | 0.18ns | 0 | 5 | 2 | 71 | 71.57 | −0.28ns | 36.08*** | 0.13ns | −6.46ns | 1.03ns | 1, 10 | 4 | 3 | 72 | 50.96 | −0.30ns | 10.49ns | 0.37ns | −9.83ns | 0.80ns | 1, 9 | 4 | 4 | 68 | 51.79 | 0.06ns | 18.60** | −0.10ns | −20.02ns | 2.55ns | 12, 14 | 3 | 5 | 79 | 35.47 | 0.12ns | 7.19ns | −0.05ns | 8.02ns | −0.61ns | 1, 9, 13 | 0 |
| Mean | n/a | 59.94 | −0.04 | 15.89 | 0.04 | −6.42 | 0.79 | n/a | n/a |
|
|
DFE: degree of freedom; AR: autocorrelation; AO: number of outliers; ns: not significant. ; ; ***.
|