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The effect, 1/16th of a standard deviation in test scores, was equivalent to a child attending three years of summer school, according to the report to be published in September in the journal Reading Psychology.
Investigating some possible mechanisms for this education transmission, Dixon et al. (2013) confirm the causal effect of paternal education on literacy and numeracy skills from as early as age four, and estimate that by age sixteen, the children of parents affected by a British school leaving age reform, gained an additional 0.1 of a standard deviation in test scores over other children.
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The figure shows the mean number of juveniles in the control vessels (containing the natural soil RefeSol 01A) and the standard deviation in tests starting at different times of the year.
Carrell et al. (2009) is an exception; these authors found that a 100-point increase in the Verbal SAT scores of freshmen squadron members, the equivalent of a standard deviation increase in test score, raised the cumulative grades of U.S. Air Force Academy cadets by approximately 0.25 grade points.
Similar values are found for standard deviation in the test setup of repeated measurements.
Recent findings at age 26 for ZZ and SZ subjects with normal lung function and only marginal deviations in liver test results showed significantly higher plasma SLPI levels, but not α2-MG, compared to age matched healthy MM subjects [ 20].
Large individual differences are evident in the standard deviations and ranges in test scores.
The coefficients for the interaction terms are interpreted as the difference in the effect of having a university degree on the respective labour market outcome for a unit difference (a one-standard deviation) in combined PISA test score (from Jaccard and Turrisi 2003, p. 35).
bMean (standard deviation) in pg/ml, t test.
HC also showed more trajectory departure (i.e. higher point deviation) in the Fly test 1A compared to the NP group (mean difference: −0.3 cm; 95 % CI; −0.6 to −0.03; p < 0.05).
The standard deviation in the gelatine testing is approximately 5% of the measured values and even higher in the tissue testing.
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