Sample sizes varied: eight studies had 0–100 participants [17,53,62,73,77,80,91,94], two had 101–300 [74,79], five had 301–500 [54,58,61,90,92], four had 501–1000 [64,67,88,89] and the remaining 28 studies had more than 1000 participants. Demographic information was incon...
Figure 3. Forest Plot of the Effect Sizes for Each Study Included in the Meta-analysis on the Prevalence of Receiving a Sext View LargeDownload Shown is a forest plot of studies2,4,6,9,26-29,31,35-37,40-43,48,51,54,55 included in the meta-analysis. The overall summary estimate for...
We find large negative policy effect sizes of −2.5% and −6.7% of a standard deviation in the GCSE z-score, per hour worked per week at age 15. We show robust evidence that a mechanism for this is part-time work reducing teenagers’ attitude to schoolwork, and to a smaller extent...
For the continuous outcome measures, a linear mixed effects model was used, and the effect sizes were presented as marginal differences in the means (or the beta coefficient for the effect of age). p-Values were calculated from the Wald's tests. Analyses were performed using R (v3.5.1 ...
Fourth, sample sizes limit efforts to evaluate the independence of associations between patient demographic and clinical characteristics and provision of psychotropic treatment. Fifth, the NAMCS records visits rather than individual patients, and the number of duplicated data for individual patients is ...
Fifth, because of the differences in group sizes, group comparisons should be interpreted with some caution and may not be generalizable to a larger sample. Sixth, only associations about success strategies can be drawn from this study. Future studies with control groups or control strategies ...
Both groups may be considered to represent young, healthy adult population. Therefore, the age difference itself cannot explain the difference between the groups. Some limitations of the present study need to be acknowledged. Although this descriptive study has one of the largest sample sizes ...
Moreover, effect sizes for current pharmacological and psychological treatments are overall modest [5] and a significant number of patients will not respond to treatments [6]. A cardinal feature of the existing paradigm in mental health has been its emphasis on fully established disorders in ...
The youth gang problem in the USA today affects communities of all sizes. Although youth gangs are more prevalent in urban areas like Detroit, New York, Chicago, and Los Angeles, they can also be found in affluent suburban and rural areas (Korem 1994, Evans et al. 1999). According to th...
This model was determined by analyzing the Bayesian Information Criteria (BIC), Akaike Information Criteria (AIC), Consistent Akaike Information Criterion (CAIC), and Akaike’s Bayesian Information Criterion (ABIC); latent class sizes; and the interpretation of latent class groupings (Table 3.). ...