• Arts participation

    Moderate impact for very low cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 3

  • Aspiration interventions

    Unclear impact for very low cost based on insufficient evidence.
    Cost
    Evidence
    Impact
    0

  • Behaviour interventions

    Moderate impact for low cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 4

  • Collaborative learning approaches

    High impact for very low cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 5

  • Extending school time

    Moderate impact for moderate cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 3

  • Feedback

    Very high impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 6

  • Homework

    High impact for very low cost based on very limited evidence.
    Cost
    Evidence
    Impact
    + 5

  • Individualised instruction

    Moderate impact for very low cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 4

  • Learning styles

    Unclear impact for very low cost based on insufficient evidence.
    Cost
    Evidence
    Impact
    0

  • Mastery learning

    High impact for low cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 5

  • Mentoring

    Low impact for low cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 2

  • Metacognition and self-regulation

    Very high impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 7

  • One to one tuition

    High impact for moderate cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 5

  • Oral language interventions

    Very high impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 6

  • Outdoor adventure learning

    Unclear impact for moderate cost based on insufficient evidence.
    Cost
    Evidence
    Impact
    0

  • Parental engagement

    Moderate impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 4

  • Peer tutoring

    High impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 5

  • Performance pay

    Low impact for low cost based on very limited evidence.
    Cost
    Evidence
    Impact
    + 1

  • Phonics

    High impact for very low cost based on very extensive evidence.
    Cost
    Evidence
    Impact
    + 5

  • Physical activity

    Low impact for very low cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 1

  • Reading comprehension strategies

    Very high impact for very low cost based on extensive evidence.
    Cost
    Evidence
    Impact
    + 6

  • Reducing class size

    Low impact for very high cost based on very limited evidence.
    Cost
    Evidence
    Impact
    + 2

  • Repeating a year

    Negative impact for very high cost based on limited evidence.
    Cost
    Evidence
    Impact
    -3

  • School uniform

    Unclear impact for very low cost based on insufficient evidence.
    Cost
    Evidence
    Impact
    0

  • Setting and streaming

    No impact for very low cost based on very limited evidence.
    Cost
    Evidence
    Impact
    0

  • Small group tuition

    Moderate impact for low cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 4

  • Social and emotional learning

    Moderate impact for very low cost based on very limited evidence.
    Cost
    Evidence
    Impact
    + 4

  • Summer schools

    Moderate impact for moderate cost based on limited evidence.
    Cost
    Evidence
    Impact
    + 3

  • Teacher aide interventions

    Moderate impact for moderate cost based on moderate evidence.
    Cost
    Evidence
    Impact
    + 4

  • Within class achievement grouping

    Low impact for very low cost based on very limited evidence.
    Cost
    Evidence
    Impact
    + 2