Skip to main content

Table 2 Analysis of variance results for the time courses of salivary melatonin secretion

From: Can tryptophan supplement intake at breakfast enhance melatonin secretion at night?

  p value F value(df) Partial η 2 value
Main effect of TRP .139 2.55(1, 11) .188
Main effect of light .099 3.25(1, 11) .228
Main effect of time <.001 25.62(1.81, 19.93) a .700
Interaction between TRP and light .391 0.80(1, 11) .068
Interaction between TRP and time .111 2.49(1.85, 20.36) a .184
Interaction between light and time .118 2.09(3.08, 33.90) a .160
Interactions between TRP, light, and time .342 1.16(4.05, 44.54) a .095
  1. aThe degrees of freedom were modified using the Greenhouse–Geisser method because the assumption of sphericity was not met
  2. TRP tryptophan