Four underachieving students have been selected to undergo rigorous training to improve their grades. For this, an activity-based learning and an after-school special coaching have been proposed....

Four underachieving students have been selected to undergo rigorous training to improve their grades. For this, an activity-based learning and an after-school special coaching have been proposed. Explain the interaction effect of this single-case research and

a.            Analyze if the individual intervention or the combination has been more effective.

b.            List some of the difficulties that you anticipate in undertaking such a study.