Need for cognitive closure as determinant for guidance in wiki-based learning
In wikis as collaborative knowledge construction environments for learning the outcome and its underlying processes can be considered on an individual as well as on a social system's level. In previous research, we could show that by implementing either supplemental implicit or explicit guidance focused on wiki discussions positive effects on the learner's side could be achieved. This study investigates what type of guidance implemented on the level of talk page discussions is beneficial dependent on the learner's degree of need for cognitive closure and if an interaction of these both factors produces larger positive effects on the individual learning processes and the resulting outcome. Therefore, we are conducting a 2 x 2 between-subjects design experimental study comparing four groups contrasting high vs low need for cognitive closure participants and implicit vs explicit guidance measures that we have positively evaluated in previous work. We expect to gather evidence that fostering learning processes in wiki-based settings making use of talk page discussions is highly dependent on individual cognitive variables interacting with the type of provided additional guidance.