Rorschach evaluation of adolescent bulimics

It has become apparent that the excessive dieting engaged in by many girls when they reach puberty frequently serves as an impetus for the later development of eating disorders. While the existence of bulimia nervosa has been well documented in late-adolescent girls, only minimal research has been devoted to delineating the personality characteristics that distinguish bulimics from normal adolescents. The present study utilized the Rorschach to contrast 12 DSM-III-R diagnosed adolescent bulimics with 12 female adolescent controls. Exner's (1986) Comprehensive System was used for scoring the protocols. Statistically significant group differences were detected on both the overall Depression and the Schizophrenia Indices, as well as on several subcomponents of each. Additionally, bulimics averaged a greater number of aggression responses. The data suggested that the adolescent bulimics were more depressed, self-punitive, and negativistic than their peers, and that they had more disordered thoughts, inaccurate perceptions, and impaired judgment. The cognitive disturbances were not limited to the areas of food and weight. The results are alarming for this young population, particularly since the severity of symptoms certainly will increase over time if left untreated. Recommendations are made for early symptom identification and intervention.     

A role-play Rorschach procedure.

Rorschach responses of three subjects were used to stimulate the type of role-playing popularized by Fritz Perls' Gestalt therapy. The standard Rorschachs were given first. Afterwards, each subject was presented with certain of his or her own images as a stimulus for the role-playing. The subjects consisted of a 19-year-old female with severe anxiety attacks, an 11-year-old lad diagnosed as having minimal cerebral dysfunction, and a 46-year-old man who had undergone two years of successful psychotherapy. It is proposed that the resulting data are valuable in expanding and clarifying the psychological meaning of the Rorschach images. Further, the procedure can be utilized, if desired, as a spur to therapeutic involvement.     

A simple method for pairwise monotone regression

A simple method of monotone regression is described based on the principle of minimizing pairwise departures from monotonicity.     

A simple general method for oblique rotation

A simple and very general algorithm for oblique rotation is identified. While motivated by the rotation problem in factor analysis, it may be used to minimize almost any function of a not necessarily square matrix whose columns are restricted to have unit length. The algorithm has two steps. The first is to compute the gradient of the rotation criterion and the second is to project this onto a manifold of matrices with unit length columns. For this reason it is called a gradient projection algorithm. Because the projection step is very simple, implementation of the algorithm involves little more than computing the gradient of the rotation criterion which for many applications is very simple. It is proven that the algorithm is strictly monotone, that is as long as it is not already at a stationary point, each step will decrease the value of the criterion. Examples from a variety of areas are used to demonstrate the algorithm, including oblimin rotation, target rotation, simplimax rotation, and rotation to similarity and simplicity simultaneously. While it may be, the algorithm is not intended for use as a standard algorithm for well established problems, but rather as a tool for investigating new methods where its generality and simplicity may save an investigator substantial effort.The author would like to thank the review team for their insights and recommendations.     

A psychometric evaluation of the Rorschach comprehensive system's perceptual thinking index

In this study, we investigated evidence for reliability and validity of the Perceptual Thinking Index (PTI; Exner, 2000a, 2000b) among an adult inpatient population. We conducted reliability and validity analyses on 107 patients who met the Diagnostic and Statistical Manual of Mental Disorders (4th ed., text revision; American Psychiatric Association, 2000) criteria for a schizophrenia-spectrum disorder (SSD) or mood disorder with no psychotic features (MD). Results provided support for interrater reliability as well as internal consistency of the PTI. Furthermore, the PTI was an effective index in differentiating SSD patients from patients diagnosed with an MD. Finally, the PTI demonstrated adequate diagnostic statistics that can be useful in the classification of patients diagnosed with SSD and MD. We discuss methodological issues, implications for assessment practice, and directions for future research.     

A simple method for semiquantitative assessment of thermesthesia

A technically simple method based on the Peltier effect was employed to determine semiquantitatively thermesthesia in normal individuals, patients with functional disorders, and patients with cortical and spinal complaints and peripheral affections of the CNS. The results demonstrate the suitability of the method in principle for use in routine examination.     

A simple graphical method for orthogonal rotation of axes

A simple method of making orthogonal rotations by projecting coordinates from one plot to another is presented. An easily constructed apparatus for rapid and accurate work is described in detail. By the technique proposed 12 to 15 rotations of pairs of axes involving 20 test variables can be completed per hour by a practiced technician.     

A simple method of factor analysis

A simple method for extracting correlated factors simultaneously is described. The method is based on the idea that the centroid pattern coefficients for the sections of unit rank of the complete matrix may be interpreted as structure values for the entire matrix. Only the routine centroid average process is required.     

A simple and sensitive method for monitoring running-wheel movement

A running-wheel movement-detection method is described for use with a modified 1350 Commodore mouse and a Commodore 64, is described. The movement-detection method allows for the detection of partial revolutions and direction of movement, but requires no interface equipment. The modified running wheel is discussed as a new technique that may be useful for bridging empirical and theoretical differences between free-operant and discrete-trial runway procedures.     

The use of the Rorschach in brief clinical evaluation

An adaptation of the Rorschach is described that can be used as part of a brief clinical evaluation. Some case illustrations are provided to demonstrate the method.