Final answer:
The statement is false; music therapy assessments can include both quantitative and qualitative data to holistically evaluate outcomes.
Step-by-step explanation:
The statement that when assessing outcomes in music therapy, the data collected will be quantitative is false. Data collection in music therapy can be either quantitative or qualitative. Quantitative data is numerical and can be counted and statistically analyzed, making it suitable for measuring observable outcomes like blood pressure or heart rate responses to music therapy. However, qualitative data, which includes subjective measures such as patient experiences and feelings, can also be important in assessing the outcomes of music therapy. For instance, a patient's self-reported improvement in mood or decreased anxiety levels following music therapy sessions would be qualitative data. Both forms of data are valuable in holistic assessments within music therapy and related fields within the social sciences.