The LogDataAnalyzer reads out data consisting of unstructured process data (log files) and tabulates them. These tables can be further processed with any given spreadsheet or statistical package. Problem Solving Items of PIAAC („Programme for the International Assessment of Adult Competencies“) are analysed that require different actions and several processing steps. Single actions or whole sequences of actions can be selected with the LogDataAnalyzer, as far as they correspond to defined actions or sequences of actions in the log files. For the extraction, specific actions that are relevant for the individual research question are searched for in the log files.

The LogDataAnalyzer has been developed in co-operation with German Social Science Infrastructure Services (GESIS) and serves for data processing. The application of this tool does not need extensive training and can be used easily.

Field of Application

The LogDataAnalyzer was first applied in the DFG project Process Data for Competence Modelling, in which data of the field test are analysed. The extracted data are used amongst others to describe the relations between the result of the process of technology based problem solving items and characteristics of the processing.
The time needed for the solving process of items (Goldhammer et al., in press), the number of interactions between test takers and test surrounding (Naumann, Goldhammer, Rölke & Stelter, under revision) and the time needed for elementary steps of item processing proved to be explanatory predictors.