There is sometimes a difficulty when responders are asked to rate items for which the general level of approval is high. For example, consider the following scale for rating the importance of selected curriculum elements:

1) No importance 2) Low importance 3) Moderate importance 4) High importance

Responders may tend to rate almost every topic or point of view as highly important, especially if doing so implies professional approbation. Then it is difficult to separate topics of greatest importance from those of less.