Which of the following statements about informal assessments is FALSE?

One of the key differences between informal and formal assessments is that informal assessments are not as rigorous. Informal assessments are more flexible, quicker, and less costly; however, they do not provide the same level of detail or accuracy as formal assessments. The statement that "informal assessments provide a result just as accurate as with a formal assessment" is therefore false. Formal assessments involve multiple types of evidence and a more thorough evaluation, while informal assessments typically rely on fewer types of evidence (often only interviews)​​.