In human sciences in general, and more specifically in psychology, it is very common to measure constructs using all kinds of rating scales. Often little attention is paid to (the importance of) the verbal anchors that are tied to different scale scores. Recent results from our own research on the self-assessment of subjective quality of life (Bernheim, Theuns, Mazaheri, Rose, 2003), however, shows that choosing a scale with imposed scale anchors can cause important distortions of the obtained measures. The one-item rating scale "I am ... with my life as a whole", where the extreme anchors are "very satisfied" and "very dissatisfied" taken from Muthny (1991) resulted in more counter-intuitive results than the self-anchored ACSA scale (Bernheim & Buyse, 1983 ; Bernheim, 1999) where the extreme scale anchors are "the for me worst period in my life" and "the for me best period in my life". In several experiments it is researched how anchoring affects the quality of the resulting measurement.