Abstract
There is an increasing public, political and research interest in social solidarity. Even though the concept has a long history and is embedded in solid approaches, there is not much literature concerned with its measurement. The paper falls into the area of the methodological studies of social solidarity and it deals with construct validation. The objective of this paper is to test for convergent validity and nomological validity of two sets of items aiming to measure social solidarity attitudes and acts. The main method employed is confirmatory factor analysis.