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Table 2.

Dependent t Tests Investigating Change in Sleep Diary Indicators From Baseline to Posttest (n = 13)

VariableM (SD)Change From Baseline to Posttest
BaselinePosttestM (SD)SEt (12)d
Sleep onset latency 35.46 (12.94) 13.00 (6.31) 22.46 (13.43) 3.73 6.03** 1.67 
Nighttime awakenings 1.85 (0.80) 1.08 (0.86) 0.77 (0.60) 0.17 4.63** 1.29 
Wake after sleep onset 21.46 (12.93) 11.38 (9.08) 10.08 (15.08) 4.18 2.41* 0.67 
Total time in bed 485.38 (56.33) 428.00 (47.96) 57.39 (34.06) 9.45 6.08** 1.68 
Total sleep time 413.08 (57.50) 396.46 (44.80) 16.62 (24.72) 6.86 2.42* 0.67 
Sleep efficiency 85.15 (4.28) 93.23 (3.30) −8.08 (6.09) 1.69 −4.78** 1.33 
VariableM (SD)Change From Baseline to Posttest
BaselinePosttestM (SD)SEt (12)d
Sleep onset latency 35.46 (12.94) 13.00 (6.31) 22.46 (13.43) 3.73 6.03** 1.67 
Nighttime awakenings 1.85 (0.80) 1.08 (0.86) 0.77 (0.60) 0.17 4.63** 1.29 
Wake after sleep onset 21.46 (12.93) 11.38 (9.08) 10.08 (15.08) 4.18 2.41* 0.67 
Total time in bed 485.38 (56.33) 428.00 (47.96) 57.39 (34.06) 9.45 6.08** 1.68 
Total sleep time 413.08 (57.50) 396.46 (44.80) 16.62 (24.72) 6.86 2.42* 0.67 
Sleep efficiency 85.15 (4.28) 93.23 (3.30) −8.08 (6.09) 1.69 −4.78** 1.33 
*

p ≤ .05.

**

p ≤ .001.

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