highly significantp -value < 0.001
While the learning strength on Day 1 didn’t differ from zero (mean = 0.003, std = 0.014; one-tailed t -test, t -value = 0.181, p -value = 0.930, df = 24) there was a prominent difference between the predictive performance of CT and Markov models on Day 9 (mean = 0.053, std = 0.037; one-tailed t -test, t -value = 7.175, p -value < 0.001***, df = 24) and difference of learning strength across the days was highly significant (one-tailed, paired t -test, t -value = −6.686, p -value < 0.001***, df = 24) ( Figure 3a ).