The invention relates to a method for estimating the attentional resources invoked for execution of a primary task and/or attention sharing strategies developed by an individual, said method being implemented in a mobile terminal, being based on utilization of the dual-task paradigm, and comprising the following steps: Evaluation of first performance ratings of the individual during the execution of a primary task alone, Evaluation of second performance ratings of the individual during the execution of a secondary task alone, Evaluation of third performance ratings of the individual during the simultaneous execution of the primary and secondary tasks, Estimation of the attentional demand required for the execution of the primary task and/or of the effect (beneficial or negative) of a secondary task on the control mechanisms involved in the execution of the primary task and/or attention sharing strategies developed by an individual by comparing the first, second, and third performance ratings.