The data file for Study S2 is a csv file where each row is a participant trial, and columns are the following: "pid": the participant uinque id "order": the order in which the participant performed the experiment (A,B,C, or D): "A": [ {"technique" : 0, "task" : 0}, {"technique" : 0, "task" : 1}, {"technique" : 1, "task" : 0}, {"technique" : 1, "task" : 1} ], "B": [ {"technique" : 0, "task" : 1}, {"technique" : 0, "task" : 0}, {"technique" : 1, "task" : 1}, {"technique" : 1, "task" : 0} ], "C": [ {"technique" : 1, "task" : 0}, {"technique" : 1, "task" : 1}, {"technique" : 0, "task" : 0}, {"technique" : 0, "task" : 1} ], "D": [ {"technique" : 1, "task" : 1}, {"technique" : 1, "task" : 0}, {"technique" : 0, "task" : 1}, {"technique" : 0, "task" : 0} ] "step": step within the order of the experiment (S0,S1,S2, or S3) "technique": the condition (active or baseline) "task": the task (degree of reach) "size": the number of nodes in the graph (n20, n40 or n80) "trial": the repetition number within the four repetitions for each block (0,1,2, or 3) "pAnswer": the participant answer "correctAnswer": the correct answer "startTime": the time at which the trial started "endTime": the time at which the trial ended "completionTime": the total completion time of the trial (endTime - startTime) "clicksLink": the number of times a link was selected during the trial "clicksNode": the number of times a node was selected during the trial "penDownTime": the total time the pen was touching the screen