Program Type Evidence of effectiveness Effects┬╣
Healthy Steps (HS)
Yes
143.00
    Parent-Child Interaction Therapy (PCIT)
    Yes
    135.00
      Triple P Positive Parenting Program
      Yes
      60.00
        Home Instruction Program for Preschool Youngsters (HIPPY)
        Yes
        40.00
          Incredible Years
          Yes
          32.00
            Healthy Families America (HFA)
            Yes
            32.00
              Infant Health and Development Program (IHDP)
              Yes
              28.00
                Early Head Start (EHS)
                Yes
                10.00
                  Nurse Family Partnernship (NFP)
                  No
                  18.00
                    Family Check-Up (FCU)
                    No
                    9.00
                      Parents as Teachers (PAT)
                      No
                      5.00

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                        Including those without statistically significant effects

                        1 Effects are expressed in learning points. Tests are standardized so that they have a standard deviation of 100. To benchmark effects, a third grader improves her scores in 40 learning points in one year.
                        = 1-5 LP , = 6-10 LP, = 11-15 LP, = 16-20 LP, = 20+LP.
                        = No effect or negative effect