3.3.1.1. Evidence of positive mood induction. In order to test
whether the mood induction was successful, we computed an
independent samples t-test on the scores of the first PAS test by
mood induction condition (neutral, positive). The analysis
revealed that after the mood induction, the Positive Emotion
(PEND and PEPD) groups (M ¼ 22.61; SD ¼ 4.88) rated their
emotions significantly more positively than the Neutral Emotion
(NEND and NEPD) groups (M ¼ 19.28; SD ¼ 5.03) at
t(119) ¼ 3.69, p < .001, Cohen’s d ¼ .68. These results suggest
that the neutral versus positive emotional states were successfully induced before the learning session.