Final answer:
A systematic review of quantitative studies would likely contain the strongest evidence.
Step-by-step explanation:
The type of report that would likely contain the strongest evidence is a systematic review of quantitative studies.
A systematic review is a comprehensive and rigorous analysis of multiple studies that have investigated a similar research question. It involves synthesizing and analyzing the data from these studies to draw conclusions.
Quantitative studies provide objective and measurable data, which is considered strong evidence because it is based on numerical measurements and statistical analysis.