Task-based language teaching (TBLT) approach for language skills improvement

The dataset comprises data used to evaluate the effectiveness of task-based language teaching approach to improve the language skills of mature students. The study was a quasi-experimental study with a convergent parallel mixed method design. The data include a pretest and posttest in reading, writing and speaking. It also includes a pre-and post-intervention questionnaire, observational checksheets with graphs and a post-intervention interview summary.