Dr. Walter J. Koroshetz, deputy director of the institute that sponsored the North American trial, said the Crest trial was the first in which the results of stenting and surgery had been found to be equivalent — suggesting that the stent procedure had improved with time.
That the large and small southern outbreak experiments showed a lesser degree of model agreement than the outbreak-soil experiment and that the large outbreak subsetting procedure had improved spatial homogeneity over the small southern outbreaks subsetting indicates that projected models may be sensitive to issues of sample size and clustering.
Nevertheless, none of these grouped aa datasets failed the tests of the model composition when the χ2 curve was used to get the null distribution, while two of the these three original datasets did, suggesting that the recoding procedure had improved the model fit (Additional File 2), reducing the potential for estimation biases.
The report identified some areas in which anti-slavery procedures had improved but said a series of other areas needed improvement and there were "too many gaps in the system for victims to fall through", especially once they left supported accommodation.
But at least investigation procedures have improved.
But Pacey argues that in this time the World Health Organisation's guidelines changed twice and measurement procedures have improved substantially.
By all accounts, building materials and techniques, as well as safety and rescue procedures, have improved immensely in the last 70 years.
"There's no doubt that procedures have improved since 2007," said Les Campbell, the regional director of the National Democratic Institute, which brought a 61-member observation team.
It was nine months after Daniel's death that inspectors went back – as part of an ordinary scheduled visit – to see if safeguarding procedures had improved so that other children would not be at risk.
The ICO increases its checks on poorly performing authorities until it is satisfied that their procedures have improved.
