this could cause lower validity if the participant lies, forgets, or misunderstands, meaning that potentially inaccurate responses are collected from this method. this could create the risk that the researcher doesn’t measure what they intend to, since they have collected false and untruthful data. this means that a less meaningful conclusion can be drawn, which could make this method less preferred opposed to others, eg unstructured interviews, which gathers in-sightful data to allow more meaningful conclusions.