REPORTED HERE ARE RESULTS OF A STUDY INITIATED TO EXAMINE PRINCIPLES INVOLVED IN THE EXPERIMENTAL MODIFICATION OF VERBAL BEHAVIOR. SIXTEEN UNDERGRADUATE FEMALE VOLUNTEERS WERE REQUIRED TO PRODUCE A VERBAL RESPONSE UNDER MANIPULATED LIGHTING CONDITIONS. BASE LINE SCORES WERE OBTAINED FOR EACH SUBJECT UNDER DIMLIGHT CONDITIONS. PUSHBUTTON SCORES…

This paper was concerned with the perceptions that can result from a change in the length of the retinal image of a line. Conditions that lead either to the perception of a line of changing length and the perception of a line of constant length undergoing covering or uncovering by another object were examined. (Author/RK)

Approaches to analyzing data to two sets of variables are summarized and the advantages of canonical correlation analysis are described. (Author)

Although psychological research has strong qualitative roots, the current dominant paradigm eschews such methods. Concerns of qualitative researchers include the subjectivity of researchers and participants, the artistic potential of qualitative research, critical evaluation of qualitative interpretations, and theory building. (Author/SK)

The collection of repeated measures in psychological research is one of the most common data collection formats employed in survey and experimental research. The behavioral decision theory literature documents the existence of the dynamic evolution of preferences that occur over time and experience due to learning, exposure to additional…

This article provides a critical review of the assumptions and findings of studies used to establish psychotherapies as empirically supported. The attempt to identify empirically supported therapies (ESTs) imposes particular assumptions on the use of randomized controlled trial (RCT) methodology that appear to be valid for some disorders and…

The origin of the present comment lies in a failed attempt to obtain, through e-mailed requests, data reported in 141 empirical articles recently published by the American Psychological Association (APA). Our original aim was to reanalyze these data sets to assess the robustness of the research findings to outliers. We never got that far. In June…

In response to the developing critique of traditional sociological measures of social class, the Differential Status Identity Scale (DSIS) was developed. The DSIS is a measure designed to tap the psychological impact on the individual of belonging to a particular social status. Internal consistency reliability and construct, convergent, and…

In psychotherapy, effectiveness of an experimental treatment often is compared to care as usual. However, little if any attention has been paid to the heterogeneity of care as usual. The authors examined the effectiveness of manualized behavior therapy on school-aged disruptive behavior disordered (DBD) children in everyday clinical practice. A…

It is of major importance to use psychological tests and questionnaires that are carefully constructed so that their reliability and validity can be determined in different (sub)cultures (Campbell & Tirri, 2004). However, a necessary prerequisite for this is the development of solid conceptual constructs. Otherwise, the researcher runs into the…

In an attempt to regain the perspective of psychological research as a whole, a dimensional model was synthesized from several popular conceptualizations. (Author/RK)

This article measured attitudes about training motivation, leadership, and course expectations. (Author/RK)

The present study was designed to test further the hypothesis that the Death Anxiety Scale is a valid measure of repression by establishing the relationship between the DAS and Gleser and Ihilevich's Reversal Score, a measure of repression, on the Defense Mechanism Inventory (DMI). (Author)

The present study is a multivariate extension of two studies undertaken to identify and describe attitude patterns of clinical psychologists toward issues pertinent to professional training. (Author)