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Keywords:

  • mathematics;
  • early intervention;
  • academic responding;
  • constant prompt delay

A multiple baseline design across students was used to evaluate the effects of a taped numbers (TN) intervention on the number-identification accuracy of 4 kindergarten students. During TN, students attempted to name the numbers 0 through 9 on randomized lists before each number was provided via a tape player 2 s later. All 4 students showed immediate increases and reached 100% in number-identification accuracy. One student reached 100% accuracy after TN was supplemented with performance feedback, reinforcement, and overcorrection.