These guidelines describe a new and improved approach to analyse and report data of validation studies and inter-laboratory comparisons studies (i.e. test performance studies) for integration in the appropriate EPPO standards (i.e. PM 7/98 (2019) and PM 7/122 (2014)). The proposed methods of analysis including statistical methods, have been tested on the 10 data sets obtained from the test performance studies conducted in the framework of VALITEST (as part of Work package 1). This new approach

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... ses, wherever possible and whenever applicable, statistical methods recommended by international standards with examples of their application to plant health diagnostic tests. This approach is a consensus agreement between VALITEST members. The analysis, presentation and interpretation of data are presented using data based on a real data set of a test performance study conducted by VALITEST (as part of Work package 1). It has been written in a simple manner for diagnostician with limited knowledge in statistics. More advanced statistical explanation are provided in Annexes.