Practice Descriptions

One-More-Than Strategy to Teach Purchasing Skills

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What is the practice?

The One-More-Than Strategy is defined as teaching individuals to pay one more dollar than requested. (e.g., cost is $3.29 and the individual gives $4.00; Denny & Test, 1995). It is also referred to as “next dollar,” “counting on,” or “dollar more” strategy.

In the studies used to establish the evidence base for the one-more-than strategy, the following skills were taught”

  • Using the one-more-than strategy to make a purchase using cash and change (Ayres et al., 2006; Cihak & Grim, 2008; Denny & Test, 1994)

Where has it been implemented?

  • School setting (3 studies)
  • Community setting (3 studies)

Where is the best place to find out how to do this practice?

References used to establish this evidence base:

  • Ayres, K.M., Langone, J., Boon, R.T. and Norman, A. (2006) Computer-based instruction for purchasing skills. Education and Training in Developmental Disabilities, 41(3), 253-263.
  • Cihak, D.F., & Grimm, J. (2008). Teaching students with autism spectrum disorder and moderate intellectual disabilities to use counting-on strategies to enhance independent purchasing skills. Research in Autism Spectrum Disorders, 2(4), 716-727. https://doi.org/10.1016/j.rasd.2008.02.006
  • Denny, P.J. & Test, D. W. (1995). Using the One-More-Than Technique to Teach Money Counting to Individuals with Moderate Mental Retardation: A Systematic Replication. Education & Treatment of Children18(4), 422–432.
Research-Based

Skill to be Learned

  • Purchasing Skills

Predictor of Post-School Success Aligned with this Effective Practice:

More about Research Evidence on this Practice