Correlation between initial and reversal learning speed for eighteen bumble-bee workers from a single colony.

<p>High <i>t</i> values correspond to slow learning, while low values are generated by fast learners. Each data point corresponds to the learning speed (<i>t</i> value) for an individual bee. On average, workers which learnt faster (had lower <i>t</i> values) in the initial learning task were also faster at learning to reverse this colour association (r_s = 0.600, n = 18, p = 0.009). This correlation remains significant even if the outlying data point on the right hand side of the figure is excluded (r_s = 0.525, n = 17, p = 0.031).