Reasons for adding qualitative data after concludin the intervention:
• To understand participants' perspectives on the results of the study
• To elicit participant feedback that can be used to revise the intervention
• To help explain quantitative outcomes
• To determine the long-term effects of the intervention
• To determine the extent to which teachers continue using an intervention
• To understand in more depth how the components of the intervention worked in a theoretical model
• To assess the context when comparing outcomes