A probabilistic model of intensive designs

Without internal validity, experimental data are uninterpretable. With intensive designs, most methods presented to quantify a design's internal validity have been subject to criticism. A probabilistic model of intensive designs is presented that demonstrates the high degree of internal validity of these designs without relying on adaptations from traditional inferential statistics. Where the experimenter is able to conform to the restrictions of the model, the equations provide an estimation of internal validity for either reversal or multiple-baseline designs. More importantly, the model provides mathematical bases for some of the common recommendations and design considerations in intensive research (such as the desirability of within-subject replications and of four or more multiple baselines).     

The Atomistic Self versus the Holistic Self in Structural Relation to the Other

I argue that meaning or significanceper se, along with the capacity to be conscious thereof, and the values, motives and aspirations, etc. central to the constitution of our intrinsic personal identities, arise, as indeed do our extrinsic social identities, and our very self-consciousness as such, from socio-cultural structures and relations to others. However, so far from our identities and behavior therefore being determined, I argue that the capacity for critical reflection and evaluation emerge from these same structural relations, the more complex and quintessentially human aspects of our behavior being explained not in terms of responses to stimuli but as choices reflecting our evaluation of meaningful or significant alternatives. Finally I provide theoretical grounds for accepting the existence of other subjects and give a holistic, as opposed to a dialectical, account of the way individuals may challenge and change the very socio-cultural ways of relating to and interacting with others so central to constituting their capacities and identities.     

Theoretical Orientations of New Zealand Psychologists: An International Comparison

Registered practicing psychologists in New Zealand (n = 221) were surveyed concerning their predominant theoretical orientation. Results were compared with findings obtained among Australian psychologists by Byrne and Reinhart (1990), British psychologists by Garrett and Davis (1995), and North American psychologists by Norcross, Karg, and Prochaska (1997a). The results showed that while New Zealand psychologists use cognitive approaches more often than both British and North American psychologists, they use behavioral and psychodynamic approaches less often. Overall, it was found that the eclectic approach is the most popular theoretical orientation obtained in surveys of Australian, New Zealand, and North American psychologists, in that no group subscribed exclusively to a single theoretical orientation.     

On the identification of clinically significant client changes: Reinterpretation of Jacobson's cut scores

Cut points or cut scores play a central role in Jacobson's popular method of identifying clinically significant changes in psychotherapy. When pre- and posttherapy scores of a client are on different sides of one of these cut scores, the change is considered clinically significant, provided that it is also reliable (i.e., not due to measurement errors). This article critically examines the meanings and implications of these cut scores. Contrary to popular beliefs, they are generallynot the test scores for which the probability of belonging to the Functional population is equal to the probability of belonging to the Dysfunctional population. When the Functional population distribution is above that of the Dysfunctional population, persons scoring above these cut scores can, in fact, have much greater probabilities of belonging to the Dysfunctional than to the Functional population. Goals of Jacobson's method can be attained only with Bayesian methods. Bayesian modifications of Jacobson's cut scores are proposed, although their use is limited by the availability of relevant base rates. Bayesian methods (a) can provide information about the probability that an individual belongs to each population, given his (her) score, and (b) are expected to yield total misdiagnosis rates that are many times lower than those of Jacobson's method. Users of Jacobson's method are cautioned against interpreting ratios of likelihoods as if they were ratios of posterior probabilities.     

A cost-effectiveness evaluation of parent training

Outcomes from a parenting program that was modified to reduce costs and a wait-list control condition were compared. Costs were reduced by over 50%. Sixty-six parents participated. Treatment parents reported significantly greater improvements in child behavior problems, parent attitudes, and satisfaction with family relationships when compared to untreated controls. These effects were maintained at three months follow-up. Outcomes for 35 of the children in the sample who had clinically significant behavior problems before treatment were also examined separately. The difference between clinical recovery rates, i.e., movement from the clinical to normal range during treatment, for control and treatment children was not statistically significant. Limitations of the current study and suggestions for future research are discussed.     

Clarifications on the application and interpretation of the test for excess significance and its extensions

This commentary discusses challenges in the application of the test for excess significance (Ioannidis & Trikalinos, 2007) including the definition of the body of evidence, the plausible effect size for power calculations and the threshold of statistical significance. Interpretation should be cautious, given that it is not possible to separate different mechanisms of bias (classic publication bias, selective analysis, and fabrication) that lead to an excess of significance and in some fields significance-related biases may follow a complex pattern (e.g. Proteus phenomenon and occasional preference for “negative” results). Likelihood ratio estimates can be used to generate the post-test probability of bias, and correcting effect estimates for bias is possible in theory, but may not necessarily be reliable.     

跨文化心理学中的文化适应研究

文化适应（acculturation）的研究已经成为跨文化心理学研究的一个重要组成部分。近年来这方面的研究急剧增加,新的理论模型不断出现,其研究对西方国家移民政策产生了重要影响。文章从文化适应的定义出发,回顾了文化适应的理论发展和主要的研究范式,同时也指出了当前文化适应研究中存在的问题,最后对文化适应研究今后的发展趋势做出了展望。这一研究领域对我国流动人口的适应问题和民族融合等方面的研究也有重大的理论意义     

差数显著性t检验与元分析方法的模拟对比

利用计算机程序构造被试总体、模拟实验研究程序进行抽样研究 ,探讨差数显著性t检验方法与元分析方法在检验实验结果数据和进行实际应用方面的差异。模拟实验结果表明 ,差数显著性t检验与总体效果大小和样本容量有明显关系 ,但与随机抽样分布样本数目基本无关 ;抽样分布样本效果大小的平均值可以作为总体效果大小的估计值 ,它与样本容量和抽样样本数目有密切关系 ;本研究提供的实际应用数据结果可以作为研究者进行元分析方法实验研究的参考依据     

The Effect of Researchers' Focus on Interpretation of Diversity Data

Abstract

The tendency for intercultural researchers to focus primarily on cultural differences instead of both differences and similarities may reflect the emphasis of current statistical methodology toward cultural distance instead of cultural overlap. The authors proposed the cultural similarity index as a way of assessing the extent of communalities between 2 groups. The authors (a) analyzed research (T. Cox, S. Lobel, & P. L. McLeod, 1991; Y. F. Niemann & J. Dovidio, 1998) that placed a primary emphasis on differences, (b) presented alternative insights gained from a focus on similarities, and (c) explored the implications of a research focus on both cultural differences and similarities.     

竞争情境中的人格取向——理论建构及实证

尝试用新的视角——取向研究视角,对竞争情境中的人格进行整合研究,建构一种与社会情境结合更紧密,更具概括性的人格取向理论。人格取向理论的假设建构模型包括四种人格取向维度：社会取向,个人取向,积极取向和消极取向。根据理论模型编制竞争情境人格取向量表,以1399名被试为研究对象,运用探索性因素分析和验证性因素分析方法对该理论模型进行实证研究。结果证明了该理论建构的存在,理论建构中各维度的因素负荷和拟合指数良好,竞争情境人格取向量表具有良好的信度和建构效度,既可作为证明该理论建构的有效工具,亦可作为评估竞争情境人