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. 2019 Oct 26;21(1):141–148. doi: 10.1007/s10339-019-00937-8

Table 1.

Means and standard deviations (SD) for DBAS, ISI, HADS-A, and F-MPS scores

Mean (± SD) Ranges
Insomnia Severity Index 5.33 ± 5.35 0–28
DBAS 5.51 ± 1.81 0–10
HADS-A 8.50 ± 4.62 0–21
Perfectionism
Concern over mistakes 23.19 ± 8.28 9–45
Doubts about action 12.01 ± 3.83 4–20
Parental expectations 12.64 ± 4.55 5–25
Parental criticism 8.46 ± 3.78 4–20
Organization 21.52 ± 5.03 6–30
Personal standards 18.33 ± 4.85 6–30

DBAS Dysfunctional Beliefs and Attitudes About Sleep Scale, ISI Insomnia Severity Index, HADS-A Anxiety, F-MPS Multidimensional Perfectionism Scale