Sentences with phrase «of a standard deviation lower»

Children conceived to mothers living within 2 miles of a Superfund site before it was cleaned are 7.4 percentage points more likely to repeat a grade, have 0.06 of a standard deviation lower test scores, and are 6.6 percentage points more likely to be suspended from school than their siblings who were conceived after the site was cleaned.

When neither maternal grandparent has completed high school, children's scores on standardized assessments of math and reading achievement are one - quarter to one - third of a standard deviation lower compared with families where at least one grandparent finished high school.

Not exact matches

Timmer: You know, the last two years until the January high, were really extraordinary times for the market, and I fear that investors got spoiled by that, because the S&P was up I think 52 % in two years and in 2017 the volatility — the standard deviation of those returns — was at an all - time low of 3.9.

At the same time, USCOX had relatively lower risk than many of its peers, with a monthly standard deviation of between 3 and 4 percent.

According to White and Grantham, a portfolio composed of 50 percent energy and metals, 50 percent all other equities, had a standard deviation that's 35 percent lower than the S&P 500 Index.

Therefore the alpha for ICVT is 10.11 % in comparison to the Bloomberg Barclays U.S. Aggregate Index and it offers relatively low risk with a standard deviation of 4.72 %.

His low - volatility portfolios consist of the 30 % of stocks with the lowest standard deviations of monthly total returns during the preceding 36 months, reformed monthly.

These conditions comprise the following: S&P 500 overvalued with the Shiller P / E (the ratio of the S&P 500 to the 10 - year average of inflation - adjusted earnings) greater than 18; overbought with the S&P 500 within 3 % of its upper Bollinger band (2 standard deviations above the 20 - period average) at daily, weekly, and monthly resolutions, more than 7 % above its 52 - week smoothing, and more than 50 % above its 4 - year low; overbullish with the 2 - week average of advisory bullishness (Investors Intelligence) greater than 52 % and bearishness below 28 %; and yields rising with the 10 - year Treasury bond yield higher than 6 - months earlier.

The product writ large is designed to reduce a diversified portfolio's correlation to the market, lower standard deviation (thus increasing a portfolio's Sharpe ratio) and ultimately deliver long - term returns in excess of the market.

In addition, Philip Morris has a fairly low stock price standard deviation of 24 %.

These upper and lower bands are set above and below the moving average by a certain number of standard deviations of price, thus incorporating volatility.

What the two groups have found is the beginnings of a detection «bump»: ATLAS team quotes a tentative result at 125 - 126GeV with a statistical significance of 3.6 σ (3.6 standard deviations); the CMS team finds one at 124GeV at a lower confidence level of 2.6 σ.

Similarly, if replacing the lowest - ranked school in the survey with a top - quintile school, student test scores would improve by 0.39 of a standard deviation using a conventional VAM, and 0.53 of a standard deviation when using the MIT team's own VAM method.

«From the brief report it is not clear what the levels of disease mtDNA are in the various tissues of the offspring, although the average is relatively low, nor is it clear whether the + / -0.92 % is standard deviation, standard error or a confidence interval, although we assume standard deviation.

Just one entry, from expert number 5, stands out apart from the rest with a very low estimate 0.3 K for the sensitivity asserted with an amazingly low «standard deviation» (confidence interval) of 0.2 K.

Standard deviation values (in all the cases lower than 20 % of mean values) are not represented for the sake of clarity.

This sharp increase in teacher performance is about 0.27 of a standard deviation (see Figure 3) and suggests that previously low - performing teachers who opted to remain on the job undertook successful efforts to improve.

My best estimate is that it lowers test scores for both boys and girls by approximately 4 percent of a standard deviation and has even larger effects on various measures of student engagement.

Hanushek writes that the NRC's average estimated impact of test - based accountability at 0.08 of standard deviations of student achievement «may well be too low.»

Students identified for retention by the Florida policy gained 0.06 of a standard deviation in reading on both the FCAT and Stanford - 9 over equally low - performing 3rd graders from the previous school year (see Figure 1).

The lowest - performing students gained about 0.20 standard deviations, roughly twice the improvement of those students whose expected gains were to leave them just below proficiency.

For example, those in the bottom decile (lowest 10 percent) improved by more than half a standard deviation, about a year and one half worth of improvement.

In terms of academic performance, KIPP students» achievement in grade 4 (before entering KIPP) is lower than the district average by 0.09 standard deviations in reading and by 0.08 standard deviations in math, or roughly one - quarter of a grade level in each subject.

For example, students who entered in 6th grade score 0.23 standard deviations lower in math and 0.14 standard deviations lower in reading by the end of 8th grade than would have been expected had they attended a K - 8 school.

We observe that there is virtually no relationship between the relative affluence of the overall student body of the school and the SES test score gap in that school: schools serving primarily high - SES students and those serving primarily low - SES students have the same average SES test score gaps (around 0.8 standard deviations) in both third and fifth grades.

Among schools where high - SES students neither gain relative ground nor fall back relative to their statewide peers, there are some schools where low - SES students gain around 0.05 standard deviation of relative ground, and others where low - SES students lose 0.24 standard deviations of relative ground.

By their low - end estimates of benefits (which total to just three standard deviations), each $ 100 spent on classroom coaches would be expected to yield at least a 0.25 standard deviations gain in achievement, very similar to the expected gain for full - day kindergarten.

Among schools where high - SES students fall back around 0.2 standard deviations relative to the state average between third and fifth grades, there are some schools where low - SES students lose only around 0.1 standard deviation of relative ground, and others where low - SES students lose nearly 0.4 standard deviations of relative ground.

Similarly, a Chicago study of an intensive math - tutoring intervention with low - income minority students in 9th and 10th grades suggested impacts of 0.19 to 0.31 standard deviations — closing a quarter to a third of the achievement gap in one year.

Maybe your intervention has a large effect size d if you manage to bring the group of learners together and lower the standard deviation.

We sorted site - visit schools into high (one standard deviation or more above the mean), medium, and low (one standard deviation below the mean) data - use groups, and we selected six high data - use schools for case study analysis of the interview data from principals and from teachers.

The remaining seven learning items also had high levels of agreement, making this component notable for its high means and low standard deviations.

After two years of enrollment, LSP scholarship users scored 0.18 standard deviations (roughly six months of learning) lower than the control group in English Language Arts (ELA), but this point estimate was not statistically significant, meaning that we can not rule out no effect or a positive effect;

[18] Of the 10.8 percent of the sample scoring below the current cutoff, 2.8 percent had value - added scores below the low cutoff (two standard deviations below the mean) compared with 1.8 percent of those not scoring below the cutofOf the 10.8 percent of the sample scoring below the current cutoff, 2.8 percent had value - added scores below the low cutoff (two standard deviations below the mean) compared with 1.8 percent of those not scoring below the cutofof the sample scoring below the current cutoff, 2.8 percent had value - added scores below the low cutoff (two standard deviations below the mean) compared with 1.8 percent of those not scoring below the cutofof those not scoring below the cutoff.

At these low - performing schools, test scores fell by an average of.3 standard deviations after Act 10's implementation, with a larger effect in the second year after the law's implementation than in the first.

Reforms raised relative funding in the low - income districts by about $ 500 per pupil, which implies that increasing funding by $ 1,000 per pupil — about 10 percent of average funding over the period — raises test scores by 0.16 standard deviations.

The very low standard deviation of ratings for all sources of influence, especially for principals, reduces the potential strength of relationships with any other variable in our study.

The average low - performing teacher in math in a Florida school serving mostly - middle class kids is just two - hundredths of a standard deviation better than an equally laggard peer in school serving poor kids, according to a 2010 study from the National Center for Analysis of Longitudinal Data in Education Research.

The effect is large: Finance reforms raise achievement in the lowest - income school districts by about one - tenth of a standard deviation, closing about one - fifth of the gap between high - and low - income districts.

In the spring of 2017, the Institute of Education Sciences (IES), the independent research arm of the Education Department, published a study that found that D.C. students who used a voucher scored 0.12 standard deviations lower in math than students who were not offered a voucher and remained in a public school.35 The evaluation assessed the outcomes of students from the 2012, 2013, and 2014 lotteries.

These are the calculations of sales rank information displayed on the book's details page that show lowest, highest, averages, and standard deviation for that book's sales rank.

The risk of this combination, I should add, was lower (measured by standard deviation) than that of either U.S. or international small - cap blend stocks by themselves.

I also have had a lower amount of volatility (as measured by standard deviation of day - over-day returns) then my benchmark index (the S&P / TSX Composite Index).

Its cumulative return was lower and the volatility (measured as a standard deviation of monthly returns) higher than those of its reference ETF portfolio.

However, the Fact Card for CGL quotes data from 1994 that shows the standard deviation of gold returns is actually slightly lower in Canadian dollars (14.69 %) than in US dollars (15.15 %).

Their appeal is not only their non-correlation (or even negative correlation) with other parts of the portfolio, but their surprisingly low volatility: as a group, managed futures tend to have lower standard deviation and smaller drawdowns than both stocks and commodities.

Standard deviation and max drawdown of the equal weight SPY / TLT portfolio is lower than the combined market timing system and SPY:

Both measures of volatility, standard deviation and downside deviation, are noticeably lower than an EM equity fund's.

It has a low standard deviation of 0.51 while its average maturity is 0.93 years.

Look to own those with the lowest underlying tracking error, which is the standard deviation of an ETF's returns from those of the benchmark.