Sentences with phrase «percentile point decrease»

Marzano (2003) estimated that establishing rules and procedures had an effect size of -0.76, which translates to a 28 percentile point decrease in student misbehavior!

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The researchers found that the average nonverbal IQ of the children significantly decreased 2.1 to 3.8 points below the average of the reference group (those with free T4 levels in the middle of the range) when the mothers» free T4 level was at or above the 89th percentile.

Meanwhile, the average achievement in the new districts increased by 0.35 standard deviations (14 percentile points), and the shares of African - American and Hispanic students decreased by 14 and 20 percentage points, respectively.

The results indicate that adding one troubled boy to a classroom of 20 students decreases boys» test scores by nearly 2 percentile points (7 percent of a standard deviation) and increases the probability that a boy will commit a disciplinary infraction by 4.4 percentile points (17 percent).

If precinct test scores dropped from the 75th to the 25th percentile of test - score change, the associated 3 - percentage - point decrease in an incumbent's vote share could substantially erode an incumbent's margin of victory.

Carrell and Hoekstra find that adding one troubled student to a classroom of 20 students decreases student reading and math test scores by more than two - thirds of a percentile point and increases misbehavior among other students in the classroom by 16 percent.

The results indicate that adding one troubled boy to a classroom of 20 students increases the probability that a boy will commit a disciplinary infraction by 17 percent and decreases boys» test scores by nearly 2 percentile points — or 7 percent of a standard deviation — each year.

Assignment to double - dose decreased the average achievement of a student's classmates by more than 19 percentile points, and increased the size of regular algebra classes by 2.4 students.

For example, a meta - analysis of school - based and afterschool SEL programs found that participation improved elementary and middle school students» test scores by an average of 11 to 17 percentile points, decreased conduct problems, and increased students» problem - solving skills.17 Similarly, a meta - analysis of school - based SEL programs for students in kindergarten through 12th grade found that participation improved students» academic performance by 11 percentile points, reduced their anxiety and stress, and increased their prosocial behavior.18 These programs were successful in all geographic locations, including urban, suburban, and rural school environments.19

As reported in the table below, at all but one of the 16 schools, the 25th percentile LSAT score has decreased, by between 1 and 7 points, with an average decrease of 3.9 points.

At all 16 schools, the 50th percentile LSAT score has decreased from 2011 to 2016, by between 1 and 8 points, with an average reduction of 3.8 points.

Research demonstrates that social and emotional learning programs raise students» standardized test scores by an average of 11 percentile points, while improving attitudes, behavior, and interpersonal communication, and decreasing problematic conduct, such as drug use, high - risk sexual interaction, and aggression.

This cutoff point corresponds to 80th percentile scores for community samples and has a 95 % sensitivity for diagnosing major depressive disorder (MDD) among low - income women, although the specificity and positive predictive value for MDD are low (70 % and 0.28, respectively).29, 30 The cutoff point of 16 has been used by many investigators assessing depressive symptoms in a variety of cohorts, including pregnant women.28 — 33 When studying depressive symptoms during pregnancy, some investigators chose to use a higher CES - D cutoff point (eg, the 90th percentile) to account for the possibility that symptoms of normal pregnancy may overlap with symptoms of depression.9, 18 There is no evidence that this approach is more accurate or preferable to using the cutoff point of 16, and the use of higher cutoff points increases specificity but decreases sensitivity for MDD.28 We used a consistent cutoff point of 16 to define depressive symptoms before and after parturition.