Comparing before and after in nvivo 123/31/2024 you want to identify changes in particular outcomes following the use of your digital product.The NICE Evidence Standards Framework for digital health technologies considers before-and-after studies evidence for demonstrating effectiveness of tier 3 products (broadly, these are digital products that seek to prevent, manage, treat or diagnose conditions). Before-and-after studies are more flexible and generally cheaper to run. However, it is not always possible to run an RCT. Randomised controlled trials ( RCTs) are considered the most reliable way to show that your digital product has caused an outcome. This study design cannot rule out that something other than the product may have caused a change. Any changes in the outcomes are attributed to the product or intervention. This page is part of a guide to evaluating digital health products.Ī before-and-after study (also called pre-post study) measures outcomes in a group of participants before introducing a product or other intervention, and then again afterwards.
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