Final answer:
False. A positive correlation does not guarantee health benefits for the variable under investigation.
Step-by-step explanation:
False. A positive correlation means that there is a relationship between two variables where they both change in the same direction. It does not necessarily mean that there are health benefits. For example, a positive correlation between smoking and lung cancer does not mean that smoking has health benefits. Similarly, positive results from the use of EHR systems in improving patient care and reducing costs do not guarantee that all results will be positive.