A child practiced the k phoneme 100 times during 30 minute sessions scheduled once per week for 16 weeks. What was the cumulative intervention intensity (doses)?

A child practiced the k phoneme 100 times during 30 minute sessions scheduled once per week for 16 weeks. What was the cumulative intervention intensity (doses)?

• A. 48000 doses
• B. 6400 doses
• C. 1600 doses
• D. 400 doses

Answer: (C)

The concept being tested is how many practice opportunities, or doses, the child receives in total. A dose is one production of the target phoneme. Each week there are 100 productions in a 30-minute session, and there are 16 weeks. So the total doses = 16 weeks × 100 doses per week = 1,600 doses. The 30 minutes per session doesn’t change the count of doses; it only describes session length. Therefore, the cumulative intervention intensity is 1,600 doses.

The concept being tested is how many practice opportunities, or doses, the child receives in total. A dose is one production of the target phoneme. Each week there are 100 productions in a 30-minute session, and there are 16 weeks. So the total doses = 16 weeks × 100 doses per week = 1,600 doses. The 30 minutes per session doesn’t change the count of doses; it only describes session length. Therefore, the cumulative intervention intensity is 1,600 doses.