TABLE 1

Effect Size of Instructional Interventions On Learning

MethodEffect Size
Instructional Quality 
     Reinforcement1.17
     Acceleration1.00
     Reading Training.97
     Cues and Feedback.97
     Science Mastery Learning.81
     Cooperative Learning.76
     Reading Experiments.60
     Personalized Instruction.57
     Adaptive Instruction.45
     Tutoring.40
     Instructional Time.38
     High-Order Questions.34
     Diagnostic Prescriptive Methods.33
     Individualized Instruction.32
     Individualized Mathematics.32
     New Science Curricula.31
     Teacher Expectations.28
     Computer Assisted Instruction.24
     Sequenced Lessons.24
     Advance Organizers.23
     New Mathematics Curricula.18
     Inquiry Biology.16
     Homogeneous Groups.10
     Class Size.09
     Programming Instruction-.03
     Mainstreaming-.12
Home, Peer, Class Morale, and Media Effects 
     Graded Homework.79
     Class Morale.60
     Home Interventions.50
     Home Environment.37
     Assigned Homework.28
     Socioeconomic Status.25
     Peer Group.24
     Television.05
Source: Waller, H. J. (1994, May). Improving the Productivity of America’s Schools. Educational Leadership, 19-27.
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