Groups were treated as statistical units. One-way
ANOVA was used to compare means of the groups exposed
to the 3 different lighting colors. Tukey-Kramer’s
test was used as a multiple comparison test when results
of the ANOVA were significant. In case data did
not meet the assumptions for ANOVA, the Kruskal-
Wallis test and Dunn’s test, respectively, were used instead.
Significance was at 0.05.