There are few high-quality studies using randomized controlled trials (RCTs) in the adventure and wilderness therapy literature. Thus, a unison call is heard for more such studies to be carried out. This article presents a Norwegian wilderness therapy research project that planned to incorporate this "gold standard" that is regarded as…

Randomized controlled trials (RCTs) and regression discontinuity (RD) studies both provide estimates of causal effects. A major difference between the two is that RD only estimates local average treatment effects (LATE) near the cutoff point of the forcing variable. This has been cited as a drawback to RD designs (Cook & Wong, 2008).…

An evaluation of one therapeutic service offered to sexually abused children in the United Kingdom exposed the methodological issue of false negatives among the comparison group, suggesting that researchers cannot assume that nonreferred comparison subjects have not actually experienced sexual abuse. (DB)

In a nonrandomized or observational study, propensity scores may be used to balance observed covariates and trajectory groups may be used to control baseline or pretreatment measures of outcome. The trajectory groups also aid in characterizing classes of subjects for whom no good matches are available and to define substantively interesting groups…

Reexamines definitions of and explanations for the Hawthorne Effect in research subjects. Notes that the Hawthorne Effect was tested in a study of the effectiveness of paired classroom reading among students. Challenges the notion that subject's behavior is modified by participation in research. Reviews various research studies that question the…

Considers the impact of information technology (IT) on children's learning in schools with particular reference to two studies that examined the value of using IT. Discussion includes the difficulties of evaluating IT effectiveness and some explanations for the insignificant impact of IT in the studies. (13 references) (KRN)