Chunk #12 — MATERIALS AND METHODS — Subjects and Recruitment

Source

Long-term effects of cannabis on brain structure.

Embedded

yes

Text

Major characteristics of the population are shown in Table 1; for each variable of interest, we tested the null hypothesis of whether the data followed a normal distribution using the Shapiro-Wilk test. As the null hypothesis was rejected, we performed group comparisons by the mean of the non-parametric Wilcoxon-signed ranks test.