Answer:
Quantitative data
Step-by-step explanation:
The collection of data is very key to any experiment as it is the way in which the results of what is being tested is analysed. There are however, two ways to scientists collect data in their investigation. These ways are quantitatively and qualitatively.
Quantitative data collection involves the type that has to do with numbers or counts while qualitative data does not deal with numbers. In this question, a doctor counts the number of asthma attacks a person has after switching medications. The COUNTING represents that the type of data collected by the doctor is QUANTITATIVE.