is especially important for researchers in psychology to be mindful of this distinction
This sentence is challenging for me because it highlights a key part of scientific research that can be easily missed. It points out that researchers need to know the difference between questions that can be answered through observation and those that involve personal values and opinions, which can't be tested. Why do researchers and people in general often have a hard time understanding this difference? How can making this distinction clearer improve the way research is done and make scientific findings easier to understand?