This is a really interesting (long) summary of the work of @B_I_Tweets in further education & adult literacy. A few things stand out
The limited impact of a values affirmation among FE students (that is, encouraging learners to affirm their own values in a new context; has worked in schools in the US).
The limited impact of a grit intervention among FE students (possibly attributable to high attrition from the study).
Strong impact of texting nominated study supporters on students’ attendance and results.
GCSEs really helps you get job interviews; functional skills and volunteering don’t seem to make a difference.
This gem (about adult education) is a pretty concise explanation for why many students at any age don’t study hard.
Most literacy/numeracy interventions in the workplace received tiny responses: except where literacy/numeracy was mandatory/essential for promotion (army, hospitals) where behavioural psychology made little difference.