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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Acta Astronaut. 2011 Dec 1;69(11-12):949–959. doi: 10.1016/j.actaastro.2011.07.015

Table 1.

Results of a mixed model ANOVA with random subject effect investigating the influence of several variables on log-transformed response time in the total sleep deprivation protocol.

Variable Degrees of Freedom F-Value P-Value
Hours awake 16; 80372 646.5 <.0001
Inter stimulus interval 9; 80372 392.8 <.0001
Time on task 9; 80372 127.9 <.0001
Sleep deprivation start day 1; 28 0.6 0.4286
Test order 1; 28 3.7 0.0661
Test version 1; 80372 3450.2 <.0001

Degrees of Freedom (DF) shown as numerator DF; denominator DF. Denominator DF were calculated with Satterthwait's method (unadjusted denominator DF are reported). P-values of type 3 effects are shown.