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. Author manuscript; available in PMC: 2016 May 13.
Published in final edited form as: Dev Neuropsychol. 2015;40(3):138–154. doi: 10.1080/87565641.2015.1028627

Table 1.

Descriptive Statistics For Sleep Diary, Actigraph, Temperament and Sleep Problems

Mean (SD) Range Sample Size

Sleep Diary
Bedtime 8:43 pm (40.17) 7:20 pm – 10:01 pm 63
Wake time 7:18 am (42.17) 5:51 am – 8:50 am 63
Nighttime Sleep 10.53 hrs (40.28) 9.17 hrs – 12.15 hrs 63
Total Sleep (Night and Nap) 12.43 hrs (50.43) 10.28 hrs – 14.05 hrs 62
Actigraph
Sleep Onset 9:23 pm (43.98) 7:53 pm – 10:54 pm 60
Sleep Offset 6:56 am (42.8) 5:32 am – 8:39 am 60
Nighttime Sleep 7.97 hrs (1.10) 5.30 hrs – 10.37 hrs 60
Total Sleep (Night And Nap) 9.38 hrs (1.17) 6.40 hrs – 11.93 hrs 52
Temperament
Activity level 4.99 (.89) 3.0 – 6.86 64
Approach 4.87 (.75) 3.17 – 7.00 64
Fear 3.02 (.89) 1.00 – 4.83 64
Soothability 5.20 (.91) 2.17 – 6.83 64
Child Sleep Habits Questionnaire
Sleep Problems 19.44 (7.27) 8 – 34 64