Questionable Conclusions?

Questionable conclusions on cannabis and crime.

In a paper published recently in this journal [1], Pedersen & Skardhamar examine whether cannabis users are at increased risk of being charged with criminal offences. They find an association between frequency of cannabis use in one year and risk of criminal charges in subsequent years. The association is statistically significant with respect to drug-specific crime only, and not to other types...

Inadequate methods and questionable conclusions in atmospheric life study.

Errors in statistical analysis and questionable randomization lead to unreliable conclusions.

Dear Editor, We read with interest the paper, “The effect of food service system modifications on staff body mass index in an industrial organization”[1]. We noticed several substantial issues with data and calculations, calling into question the randomized nature of the study and validity of analyses. The distribution of baseline weight was significantly differentbetween groups (p-value = “0.0...

errors in statistical analysis and questionable randomization lead to unreliable conclusions

dear editor, we read with interest the paper, “the effect of food service system modifications on staff body mass index in an industrial organization”[1]. we noticed several substantial issues with data and calculations, calling into question the randomized nature of the study and validity of analyses.the distribution of baseline weight was significantly differentbetween groups (p-value = “0.00...

The Questionable Tooth

The purpose of this article is to provide a review of the small but loud debate that has surrounded fluoride over the past 50 years. The benefits of fluoridation and its effect on public health are well known throughout the dental community. What is far less well known are the objections from people— in the tradition of the old amalgam and radiograph radiation debates—who feel that fluoride has...