Fig. 3
From: Robot-aided developmental assessment of wrist proprioception in children
Analysis of learning trend. Slope of the fitting curve (panel a) and its goodness R 2 (panel b), for the matching error across the 36 trials for each subject. A decreasing slope of the linear fitting would indicate a positive learning rate, vice versa positive slope would point out a negative trend. The lower is the slope the flatter is the curve (the weaker is the evidence of a learning trend). Furthermore, low values of R 2 indicates that there is no a good fitting of the data, excluding the hypothesis of a learning trend