This contribution evaluates one attempt to measure social trust through a multitude of survey items. Cognitive interviews were used on a small sample of respondents to test question wordings. Data from a large postal survey carried out in 2009 to a sample of 12909 respondents with several items relating to trust is used to analyze the validity of the measurements and the multidimensionality of the concept. The survey data suggests that trust is a multidimensional concept. A major drawback is that the adding of survey items on trust seems to increase the proportion of internal missing values and don’t knows.