Chapter 5: Variables

One thing that still leaves me wondering more about is the issue of face validity. Is face validity something that is really crucial in psychological research? The book gave the example of the Rorschach test having low face validity but has true validity otherwise. It also seems that with many experiments that implement tests while using some type of deception have the dilemma of low face validity, but have high validity. When would this type of validity be of true concern for a researcher would be a true concern?