Sentences with phrase «size of the effects for»

Given the small size of the effects for each individual student, even a slight bit of selection bias could dramatically alter the estimated benefits of an individual teacher.

Not exact matches

For example, Warshay worked with a pair of entrepreneurs who spent time in the prenatal vitamin section at Whole Foods, where they discovered women didn't like the large size of vitamin pills and potential side effects of nausea and constipation.
Zhang agrees that such a benefit is possible for hog producers, but notes that the effect of soybean tariffs could still be catastrophic for the larger agricultural industry, given the size of the Chinese soybean market.
I then adjust the rates to control for the effect of changes in rocket warhead sizes from one conflict to another.
They identify idiosyncratic volatility shocks as large deviations from the volatility predicted out - of - sample by a regression model that accounts for market, size and book - to - market effects.
Individuals in the top 10 % of past performers earn average abnormal (adjusted for size and momentum effects) monthly returns starting at 7.85 % after one month and falling gradually to 5.20 % after 36 months.
Soon after its discovery in 1981, the size effect reversed for the balance of the century in most countries, with smaller stocks underperforming large ones.
By excluding Allergan's recent string of acquisitions, the new rules would, in effect, shrink the Irish company's size, making it impossible for Pfizer to pass the 60 % test to access its $ 74 billion of deferred foreign earnings tax - free.
This is because the 9/11 memorial relies not on symbolism but on sheer magnitude for its effect — the size of the footprints, the volume of water pouring into them, and the number of names on the panels — as if magnitude alone could endow it with sublimity.
The effect of denominational size, we know from other research, can be linked in turn to the effect of immigration to the United States, to competition among denominations and between Protestants and Catholics for members, and to the so - called «baby boom» that followed World War IL In other words, in the United States, sectarianism has been associated with demographic expansion in the world system, just as it appears to have been in Europe in earlier centuries.
The figures illustrate the drop in acceptance of network programs by affiliates beginning in 1976 - 77, and the effect which this has had on audience sizes for these programs.
The growing evidence of the negative health effects of sugar sweetened drinks has led to calls for action to limit consumption.1 2 Several options exist, including controls on the marketing of sugar sweetened drinks, limits on portion sizes, and taxation.3 In the United Kingdom, the sale of sugar sweetened drinks in schools and their advertisement during children's television is banned.
Grow More Food Festival, which offers many entertainment options for Guyanese residents, encourages all sizes of businesses within the agriculture industry to grow more food, and engages families to plant kitchen gardens and other small - scale gardens to help offset the effects of higher food prices.
The Office for National Statistics (ONS) has highlighted the «shrinkflation» effect — that is household goods manufacturers reducing packaging sizes while keeping prices the same — being felt across a range of items in the UK.
The effect sizes at 4 h for cumulative urine output compared with still water were 1.04 for full - fat milk, 0.85 for skimmed milk, and 1.09 for ORS (all large effects), with an effect size of 0.65 for orange juice (a medium effect).
One report examined effect sizes and found that studies sponsored by the food industry reported significantly smaller harmful effects for the association of soft drink consumption with energy intake and body weight than those not sponsored by the food industry.
Thus, the rate of freezing for plant tissues is extremely important due to the effect of freezing rate on the size of ice crystals, cell hydration, and damage to cell walls (Rahman, 1999).
This has the unfortunate side effect of implying that you can't evaluate a player with reasonable certainty until he has played for years and you have a large sample size.
CatBirdBaby has improved the designs for the original Mei Tais by making the body of the Mei Tai larger to enable a better wrap - around effect, and lengthening the supportive straps to create more allowance for use between people of different sizes.
Adjustment for family history of asthma, house dust mite allergy, and hay fever did not materially change the effect sizes for the duration of exclusive breastfeeding with upper and lower respiratory tract infections.
A prospective, controlled study of the effect of breast milk on infection among low birth weight infants was conducted in India in 1981.18 Although the sample size was small, 62 infants, the study design was a randomized block design in which feeding schedules for breast milk or formula were randomly allocated within groups of infants that were determined to be relatively homogeneous with respect to factors predisposing to infection.
A study by Luby and other WUSM researchers showed that a mother's love had a physical effect on the size of her child's hippocampus — the area of the brain responsible for memory.
In practice it is slightly more complex than this as inflation can reduce the effective size of a debt and you can borrow money to pay off debts to get better interest rates, and for a whole country the value of the currency has a significant effect,
«As evidenced by the State's approval of our C4E [Contracts for Excellence] class size reduction plan every year the law was in effect, we've remained committed to minimizing the growth of class size in all of our schools.»
Because these patterns have a fixed size, they can be used to determine the distance of objects and probe the expansion of the universe for the effects of dark energy.
Scientists have looked for the gravitational effects of unidentified, star - sized objects, which could be made either of normal matter or dark matter, known as massive compact halo objects, or MACHOs.
Over the last 50 years, neuroscience has seen an «increase in research flexibility and the complexity of study designs combined with the stability of sample size and search for increasingly subtle effects,» the article's authors write.
«Our modeling results suggest that the physical aspects of the kelp — its sheer size and its presence, the shade that it casts, its effect on flow and the habitat it provides for predators — affect the reef ecosystem more than its productivity,» Miller said.
For each policy, the literature was reviewed from January 2000 through July 2012 to find evidence of effectiveness and to create average effect sizes.
For each policy, literature was reviewed from January 2000 - July 2012 to find evidence of effectiveness and to create average effect sizes.
Schwarzkopf suggests that this is because the circuits in the visual cortex responsible for the illusion are the same size in everyone, but cover a greater proportion of a smaller visual cortex, causing a stronger effect.
Although previous studies of similar nanoparticles have found an effect of nanoparticle shape and size on antibody responses, such a trend was not seen at significant levels for the DENV2 - E vaccine.
To test for the effect, the CVX team sent up 0.37 fluid ounces (11 milliliters) of xenon sealed in a vessel that contained a thumbnail - size nickel mesh capable of vibrating at a range of amplitudes [see image].
The pituitary gland at the base of the brain — which releases a wide range of hormones, including some responsible for regulating reproduction — showed the opposite effect, apparently increasing in size during pregnancy.
Harry Potter also appeared to encourage opposition to punitive policies — gauged by responses to questions about the use of torture, killing terrorists, and support for the death penalty — though the effect size was small.
For the particles to have an effect, the impact must be extremely intense, such as that caused by a firearm or micrometeorites (objects the size of grains of sand capable of hitting satellites at the speed of ten kilometres per second).
Researchers at Columbia Business School have found that, despite their size, mobile ads can have a big effect on consumers who are in the market for certain types of products.
Lead author Professor Marian Rizov from Lincoln International Business School at the University of Lincoln, said: «Our findings offer compelling evidence that increasing wages for the lowest paid workers improves productivity, and that this effect applies in companies of all sizes and across most low - paying sectors.
Statistical modeling of the results revealed that, on average, patients experienced significantly reduced scores for the active treatment, though the size of the effect in individual patients varied.
Further adjustment for parity did not alter the direction or size of the effect.
The phenomenon, known as Warburg effect, is typical for cancer cells and the mechanism behind is believed to benefit cancer cells by switching biochemical engines from energy manufacturing reactions to anabolic reactions, which primarily support growth of the cell size and proliferation.
While the researchers stress that no current or planned wind farm approaches the size or concentration that would cause the slowdown effect, their results suggest the phenomenon tied to large wind farms needs to be accounted for in future planning of wind energy.
What's more, according to Tim Bates of the National Oceanic and Atmospheric Administration (NOAA), «there's a very wide range of sizes [for aerosol particles], and the effect that the particle is going to have on climate is going to be very dependent on its size, which makes it trickier.»
After correcting for the distorting effects of the lens, the team were able to accurately measure the sizes of the radio - emitting regions in the sample of quasars.
Looking back at previously collected strength data for olivine, the researchers determined that the discrepancies in those data could be explained by invoking a related size effect, whereby the strength of olivine increases with decreasing grain size of the tested samples.
This demonstrates how a fairly subtle modification of a regulatory network, effected by a selector gene, can set off a chain of events that has powerful ramifications for morphogen signaling and organ size.
Markus Jansson - Fröjmark said: «These findings are important because, though the effect size is small, they suggest that teaching people strategies for regulating their emotions might help prevent new cases of insomnia to occur and decrease the risk of persistent insomnia.»
In the six subjects, we observed significantly shorter latency (Figure 2A) and shorter excess path length for locations that had been learned during stimulation of the entorhinal region in blocks 1, 2, and 3, than for locations that had been learned without stimulation (latency, z = − 2.20, P = 0.03; excess path length, z = − 2.20, P = 0.03; effect size, [Cohen's] d = 1.74)(Figure 2A and 2C, respectively).
(A) SPM results for the comparison of MP vs. placebo on the BPND images from [11C] raclopride in marijuana abusers (MA) and in healthy controls (HC)(Puncorr < 0.005) and group comparisons for the effects of MP (ΔBPND)(P < 0.01, cluster size of 10 voxels).
We corrected the implications of the effect that monkey tool use has on shellfish size for explanations of reducing shellfish size elsewhere
a b c d e f g h i j k l m n o p q r s t u v w x y z