Exact(3)
One widely cited study, on schools in Long Beach, California, showed a decrease in school crime after the introduction of uniforms, but the city had taken many other measures to reduce violence at the same time, so it's hard to tease out how much uniforms mattered.
By evidence I mean that we had a experimental group and a control group and we saw a decrease in school shootings in the experimental group.
Be aware of dramatic mood swings, personality changes, impulsiveness, loss of interest in activities, sleeping or eating habit changes or a decrease in school or work performance.
Similar(57)
Regardless of the exact time period of change, both students and parents in our school sample reported a decrease in school-related Qol with increasing student age.
Among children with both prior and concurrent blood lead concentrations below the corresponding medians as the reference group, those with prior blood lead concentrations at or above median but concurrent blood lead concentrations below the median did not have a decrease in school-age IQ score.
An important aspect, which emerged from some of the studies, is a significant decrease in school absenteeism due to migraine [10] and a reduction in the disability caused by migraine (as assessed by PedMIDAS), leading to an improvement in the childrens' quality of life [10, 14].
Early data from the Fall wave of the H1N1/09 outbreak in the United States already shows a trend towards a decrease in cases in school-age children [64].
The report, which uses the most recent data available though 2012, shows an overall decrease in school crime throughout the past 10 years, although a slight uptick began in 2010.
BREATHE LA estimates the project could yield a 10 15% decrease in school absenteeism due to asthma and a $2.7 million savings in avoided asthma-related emergency room visits and hospitalizations.
Since 2001, HCI has trained over 60,000 families nationwide in seven languages, reporting a 43% decrease in school days missed and 56% decrease in clinic visits, but it goes beyond lowered clinic visits or reduced sick days.
But with the state's budget crisis already causing deep cuts in school districts statewide, and a proposed $1.3 billion decrease in school spending next year, the state's ambitious plans are likely to be reined in, which in turn may hurt its chances for the federal cash.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com