Data
182,220 items of data are available, covering 182,220 participants.
Some values have special meanings defined by Data-Coding
100584.
Units of measurement are minutes.
Maximum | 535 |
Decile 9 | 90 |
Decile 8 | 60 |
Decile 7 | 45 |
Decile 6 | 30 |
Median | 30 |
Decile 4 | 20 |
Decile 3 | 15 |
Decile 2 | 15 |
Decile 1 | 10 |
Minimum | 0 |
|
|
- There are 105 distinct values.
- Mean = 40.2283
- Std.dev = 44.8958
- 3424 items above graph maximum of 170
- 2837 items have value -3 (Prefer not to answer)
|
Notes
Sleep online question: "During the past month, how long has it usually taken you to fall asleep each night?"
The question in this field was taken from the Pittsburgh Sleep Quality Index.
The Pittsburgh Sleep Quality Index: A New Instrument for Psychiatric Practice and Research (Authors Daniel J. Buysse, Charles F. Reynolds III, Timothy H. Monk, Susan R. Berman, and David J Kupfer, © University of Pittsburgh 1989 and 2010. All Rights Reserved)
Coding 100584 defines 1 special value:
- -3 represents "Prefer not to answer"