WWC review of this study

Pearson Investigations in Numbers, Data, & Space efficacy study: Final report

Gatti, G., & Giordano, K. (2010). Gatti Evaluation Inc.: Pittsburg, PA

  • Randomized controlled trial
     examining 
    178
     Students
    , grades
    1-5

Reviewed: May 2013

At least one statistically significant positive finding
Meets WWC standards with reservations
General Mathematics Achievement outcomes—Statistically significant positive effects found
Outcome
measure
Comparison Period Sample Intervention
mean
Comparison
mean
Significant? Improvement
    index
Evidence
tier

Group Mathematics Assessment and Diagnostic Evaluation (GMADE)

Investigations in Number, Data, and Space® vs. Business as usual

End of Year 2

Grade 4 cohort;
178 students

54.93

51.59

Yes

 
 
10
More Outcomes

Group Mathematics Assessment and Diagnostic Evaluation (GMADE)

Investigations in Number, Data, and Space® vs. Business as usual

End of Year 2

Grade 1 cohort;
155 students

57.05

57.29

No

--

Characteristics of study sample as reported by study author.


  • 55% Free or reduced price lunch
  • Race
    Asian
    3%
    Black
    19%
    White
    59%
  • Ethnicity
    Hispanic
    19%
    Not Hispanic
    81%

  • Rural, Suburban, Urban
    • B
    • A
    • C
    • D
    • E
    • F
    • G
    • I
    • H
    • J
    • K
    • L
    • P
    • M
    • N
    • O
    • Q
    • R
    • S
    • V
    • U
    • T
    • W
    • X
    • Z
    • Y
    • a
    • h
    • i
    • b
    • d
    • e
    • f
    • c
    • g
    • j
    • k
    • l
    • m
    • n
    • o
    • p
    • q
    • r
    • s
    • t
    • u
    • x
    • w
    • y

    Arizona, Massachusetts, Oregon, South Carolina
 

Your export should download shortly as a zip archive.

This download will include data files for study and findings review data and a data dictionary.

Connect With the WWC

loading
back to top