1. Arts participation

    Low impact for low cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.17
  2. Aspiration interventions

    Very low or no impact for moderate cost based on very limited evidence.

    Cost
    Evidence Strength
    Months Impact
    00.00
  3. Behaviour interventions

    Moderate impact for moderate cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +40.30
  4. Block scheduling

    Very low or no impact for very low or no cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    00.00
  5. Collaborative learning

    Moderate impact for very low cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.41
  6. Digital technology

    Moderate impact for moderate cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +40.28
  7. Early years intervention

    Moderate impact for very high costs, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.38
  8. Extending school time

    Low impact for moderate cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.11
  9. Feedback

    High impact for very low cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +80.63
  10. Homework (Primary)

    Low impact for very low or no cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.10
  11. Homework (Secondary)

    Moderate impact for very low or no cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.44
  12. Individualised instruction

    Low impact for very low cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.10
  13. Learning styles

    Low impact for very low cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.13
  14. Mastery learning

    Moderate impact for very low cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.44
  15. Mentoring

    Low impact for moderate cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +10.02
  16. Meta-cognition and self-regulation

    High impact for very low cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +80.62
  17. One to one tuition

    Moderate impact for high cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.40
  18. Oral language interventions

    Moderate impact for very low cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.41
  19. Outdoor adventure learning

    Moderate impact for moderate cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +30.23
  20. Parental involvement

    Moderate impact for moderate cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +30.26
  21. Peer tutoring

    Moderate impact for very low cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.43
  22. Performance pay

    Very low or no impact for low cost, based on very limited evidence.

    Cost
    Evidence Strength
    Months Impact
    00.00
  23. Phonics

    Moderate impact for very low cost, based on very extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +40.35
  24. Physical environment

    Very low or no impact for low cost based on very limited evidence.

    Cost
    Evidence Strength
    Months Impact
    00.00
  25. Reading comprehension strategies

    Moderate impact for very low cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +50.42
  26. Reducing class size

    Moderate impact for very high cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    +30.20
  27. Repeating a year

    Negative impact for very high cost based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    -4-0.32
  28. School uniform

    Very low or no impact for very low cost, based on very limited evidence.

    Cost
    Evidence Strength
    Months Impact
    00.00
  29. Setting or streaming

    Negative impact for very low or no cost, based on moderate evidence.

    Cost
    Evidence Strength
    Months Impact
    -1-0.09
  30. Small group tuition

    Moderate impact for moderate cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +40.31
  31. Social and emotional learning

    Moderate impact for moderate cost, based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +40.32
  32. Sports participation

    Low impact for moderate cost based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.18
  33. Summer schools

    Low impact for moderate cost based on extensive evidence.

    Cost
    Evidence Strength
    Months Impact
    +20.18
  34. Teaching assistants

    Low impact for high cost, based on limited evidence.

    Cost
    Evidence Strength
    Months Impact
    +10.08