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This implies that a general relationship between achievement gain and one aspect of curriculum may not even exist at all for some countries".
This consistency in the level of measurement was perceived as making the impact on achievement gain more sensitive to variability in content and instructional time and coverage.
Ten countries appear to have a significant (p < .05) structural coefficient between textbook coverage and achievement gain; three countries have a significant coefficient between content standards coverage and achievement gain; and six countries have a significant coefficient between instructional time and achievement.
Textbook coverage was also hypothesized to have a direct effect on instructional time and teacher coverage and, through those variables, an indirect effect on achievement gain, in addition to a direct effect.
For the second example (Schmidt et al. 2001), we focus on a study that uses large-scale assessment data to examine the effect of curriculum coverage on achievement gain scores.
By sampling from the two adjacent grades (e.g., 7th and 8th grades in the US), the researchers constructed presumably equivalent groups to estimate achievement gain scores as the difference in percentage of items correct between the two grades averaged over all items in a topic.
Similar(47)
Have there been modest achievement gains to show for it?
Although the data showed that small schools reduced violence, actual achievement gains were modest.
Over 30 years, modest new spending for regular education has apparently resulted in modest achievement gains.
Certain aspects of his achievement gained prominence for the first time, principally the wide range of his printmaking.
Last October, the American Federation of Teachers (AFT) released a study of Edison's achievement gains at 40 schools in eight states.
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