Objective: To evaluate the effectiveness of a web-based protocol, ModerateDrinking.com (MD; "www.moderatedrinking.com") combined with use of the online resources of Moderation Management (MM; "www.moderation.org") as opposed to the use of the online resources of MM alone. Method: We randomly assigned 80 problem drinkers to…

Findings from randomized clinical trial revealed that procedures intended to protect psychotherapy blind were only modestly effective but comparable to standard procedures used to maintain pharmacotherapy blinds. Accuracy of guessing each form of treatment (psychotherapy or pharmacotherapy) was not independent of other. Findings suggest importance…

Considers multiple design issues and strategies raised by comparative outcome studies including the conceptualization, implementation, and evaluation of alternative treatments; assessment of treatment-specific processes and outcomes; and evaluation of the results. (Author/BL)

The study concludes that the majority of research is focused on the diagnostic, descriptive, and psychometric problems of clinical psychology and not on decision making and treatment problems. (Author)

Discusses methodological problems involving use of MMPI by reviewing past literature. MMPI is so easily used that it is sometimes misapplied or data obtained from it are incorrectly analyzed by researchers unfamiliar with its limitations or peculiarities. Suggestions for improving research design are made. (Author/BEF)

Identifies common problems in research on the addictions and offers suggestions for remediating these methodological problems. The addictions considered include alcoholism and drug dependencies. Problems considered are those arising from inadequate, incomplete, or biased reviews of relevant literatures and methodological shortcomings of subject…

Develops random-effects probit model for case in which outcome of interest is series of correlated binary responses, obtained as product of longitudinal response process where individual is repeatedly classified on binary outcome variable or in multilevel or clustered problems in which individuals within groups are considered to share…

To determine the extent to which published randomized controlled trials (RCTs) of psychotherapy can be generalized to a sample of outpatients, the authors matched information obtained from charts of patients who had been screened out of RCTs to inclusion and exclusion criteria from published RCT studies. Most of the patients in the sample who had…

Applied structural equation modeling to evaluation of cross-lagged panel models. Self-reports of physical and mental health at three time points spanning four-year interval were analyzed to illustrate cross-lagged analysis methodology. Data were analyzed from 856 patients with hypertension, diabetes, heart disease, or depression. Cross-lagged…

Designed three-factor experiment to evaluate potential for improving first-session performance of six trainee-therapists as measured by postsession client ratings (n=48). Rather than through standardizing therapist behavior by using training manual beforehand, therapist effects were handled through statistical control. Found that more frequent…

In a randomized clinical trial, a researcher can increase statistical power by including a covariate (or pretest) to reduce participants; however, this raises the cost per participant. A simple closed form expression is derived that applied researchers can use to answer the cost/benefit question. (JPS)

Investigators are urged to plan factor analytic studies prior to collecting the data, to formulate a hypothesized factor structure, to develop several relatively pure measures of each factor expected, and to select an appropriate sample of at least 200 cases. Continuous variables should be used rather than dichotomous variables. (Author)

Presents a series of arguments that emphasize the importance of comparatively evaluating psychotherapies with appropriate pharmacotherapy and pill placebo. The lack of a pill-placebo arm has rendered moot those studies that compared pharmacotherapy directly with psychotherapy because of the lack of an internal sample defining calibration with…

Reviews a study which found that symptoms associated with posttraumatic stress disorder (PTSD) are neither unique to or common among Vietnam veteran psychiatric patients or their Korean war counterparts. Questions choice of study sample, confounding variables, and source of data. A rebuttal by the original author is included. (WAS)

Methods are proposed and described for estimating the degree to which relations among variables vary at the individual level. As an example, M. Fishbein and I. Ajzen's theory of reasoned action is examined. This article illustrates the use of empirical Bayes methods based on a random-effects regression model to estimate individual influences…