From: The relationship between consumption of tyrosine and phenylalanine as precursors of catecholamine at breakfast and the circadian typology and mental health in Japanese infants aged 2 to 5 years
Morningness-eveningness scores
Scores of mental health scale
df
F value
P value
One-Way ANOVA
1
7.997
0.005
8.302
0.004
ANCOVA
0.018
0.894
5.773
0.017