Skip to main content

Assessing Evaluation Studies The Case of Bilingual Education Strategies (1992) / Chapter Skim
Currently Skimming:

Appendix B: Trajectory Analysis of Matched Percentiles
Pages 113-118

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 113...
... The 1988 paper by Braun is quite clear and does an excellent job of describing the underlying graphical tool. TAMP graphs are a simple tool for comparing change (or growth from crosssectional data.
Read the entire page →
From page 114...
... The TAMP methodology does not provide a definitive analysis of data, but it is a useful exploratory and descriptive tool. A TAMP graph for comparing N populations on two tests is a line graph win 1~- lines on it.
Read the entire page →
From page 115...
... with initial test score dis~ibunon given by: Initial Marginal Dis~ibuiions (at time O) Population Between O and 9.99 Between 10 and 20 Fo 1~000/1 1~000 10~000/1 1?
Read the entire page →
From page 116...
... In other words, 15 percent of population F low scorers unproved to the high scoring category on the final test while only 10 percent of population G low scorers showed a similar improvement. In fact, for every starting score, population F students raised their scores more than did population G students.
Read the entire page →
From page 117...
... Nearly all students in population G score poorly on the first test, while most of those in population ~ score very well on the first test- exactly He situation that would warn of a difficulty in interpreting the TAMP analysis. In summary, although TAMP provides a useful exploratory tool, users should be cautious about drawing strong conclusions.
Read the entire page →
From page 118...
... (199lb) Final report: Longitudinal study of structured-english immersion strategy, early-exit and late-exit transitional bilingual education programs for language-minority children, Volume II.
Read the entire page →

Key Terms

  • low scorers
  • tamp curves
  • marginal distributions
  • final test
  • initial test

  • uniformly retarded
  • marginal distribution
  • retarded progress
  • bilingual education
  • test score

  • remained low
  • useful exploratory
  • sorted scores
  • actually plot
  • illustrative example

  • tamp provides
  • actually happening
  • representing data
  • unequal distributions
  • comparing change

  • uniform distributions
  • compare populations
  • population initial
  • immersion report
  • strong conclusions

  • calls uniformly
  • tamp graphs
  • initial distribution
  • test scores
  • interpreting difference


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.