Personality Moderating Variables: A Warning about Statistical Artifact and a Comparison of Analytic Techniques

ABSTRACT Personality moderating variables act to qualify the relationship between a personality trait measure and a relevant behavioral criterion. Two data analytic techniques that can be used to test for significant moderating effects are the "median split" (MS) approach and the "moderated multiple regression" (MMR) approach. The goals of the present research were ( a ) to apply the MS approach to computer-simulated data in which the moderator and trait extremity are confounded, to determine the extent of artifact, and ( b ) to compare the performance (Type I and Type II error rates) of the two approaches when applied to confounded and nonconfounded data. It was found that when the MS approach was applied to confounded data in which no real moderating effect existed, this approach produced an alarming rate of apparent, but spurious, moderating effects. When the MMR approach was applied to the same data, the rate of spurious effects was reduced to that expected by chance. When both approaches were applied to simulated data which contained genuine moderating effects, the MMR approach consistently resulted in more correct detections of these effects than the MS approach. We conclude that researchers should always employ the MMR rather than the MS approach when testing for personality moderator variable effects.     

The use of brief restraint plus reinforcement to treat self-injurious behavior

This study evaluated the use of brief arm restraint plus differential reinforcement of alternative behavior to treat the self-injurious behavior of two residents with multiple handicaps and profound mental retardation. The study took place in a nursing home and sessions were conducted for 15 minutes, Monday through Friday. The design contained both multiple baseline and reversal components. Mean levels of self-injurious behavior and stripping for one client were reduced from 92 to 16% and 81 to 2%, respectively, by the treatment. Her appropriate behavior increased from a mean of 18% in baseline to 100% in treatment. The second client's self-injurious behavior averaged 39% in baseline, but was reduced to a mean of 9% in treatment. His throwing decreased from a mean of 54% prior to treatment to a mean of 2%, while appropriate object manipulation increased from 26 to 99%. These data support the use of brief restraint plus reinforcement for decelerating severe self-injurious behaviors and accelerating appropriate behaviors in adults with profound mental retardation. The advantages of this treatment are that it appears to be less intrusive and to offer more educational benefits than other commonly used techniques.     

Effects of constraint and validity of sentence contexts on lexical decisions

Recent models of sentence context effects predict that the pattern of facilitation and inhibition of response to sentence completions should be influenced by the experiment-wide contextual “environment.” In the present experiments, this environment was manipulated in several ways, including the degree to which contexts constrained possible completions, the probability of predictable completions’ being presented, and the probability of congruous completions’ being presented. In Experiment 1, decreasing the proportion of congruent test words had no effect on either the facilitation for highly likely words or the inhibition for incongruent words; increasing the proportion of predictable words produced no increase in facilitation for these words, but did increase the inhibition for incongruous words. In Experiment 2, contexts with very high or very low degrees of constraint produced equivalent results when predictability was uniformly low: no facilitation for unlikely but congruent words, and inhibition for incongruent words. In general, the patterns of change in facilitation and inhibition caused by changes in the contextual environment were more consistent with the modified two-process model (Stanovich & West, 1983) than with the verification model (Becker, 1982). But the limited range of influence suggests that, under conditions approximating normal reading, little use is made of such “metacontextual” information.     

Returning to the Fire: Surviving the Holocaust and “Going Back”

This paper examines the multiply determined factors in Holocaust survivors who return to their native countries and sites of persecution. Citing material from archived interviews and consultations with a gravely ill survivor, as well as published accounts from others, the author explores historical, cultural, and psychodynamic dimensions. Intrapsychic, developmental, and traumatic aspects are considered, such as the fantasy of reunion with the lost maternal object, unresolved grief, the repetition compulsion, attempts at mastery, and the use of counterphobic or hypomanic defenses. This constellation of factors is seen in the context of the Jewish premium on remembering and the political realities of post war Europe. The role of the Second Generation in assisting the survivor parents in the working through process is also emphasized.     

Age-related differences in cardiovascular reactions to mental stress tests in women

Tested 84 healthy, sedentary women in the laboratory during performance of difficult and easy problem-solving tasks. They were divided into three age groups: 19 to 32 years, 33 to 43 years, and 44 to 60 years (n = 28 women per group). Baseline systolic blood pressure (SBP) and diastolic blood pressure increased with age, whereas skin conductance level was lower in older women. In addition, initial SBP reactions to tasks were positively related to age, even after controlling for baseline blood pressure, aerobic fitness, and Framingham Type A Scale behavior scores. There were no differences in heart rate (HR) or "additional" HR reactions, so the anticipated decline in cardiac sympathetic response with age was not observed. The mechanisms underlying age-related reactions to mental stress are discussed.     

Gradients of attraction as a function of the fit between social setting and stimulus person characteristics: Studies of the differentiation of attitude

Two experiments compared three alternative hypotheses concerning differences in attraction to a person across interaction settings: A compartmentalization hypothesis assumes that a person's (A's) intimate and nonintimate characteristics only affect attraction to him in intimate and nonintimate interactions, respectively, and that there is no generalization of attraction across levels of intimacy. An intimacy dominance hypothesis assumes that a person's intimacy-related characteristics determine attraction to him at all levels of interaction. Finally, an intimacy threshold hypothesis assumes that a person's intimacy-related characteristics become increasingly relevant to attraction as the intimacy of interaction increases, but that these characteristics need not influence attraction at nonintimate levels of interaction. Experiment 1 supported the compartmentalization hypothesis. Attraction to a formal teacher decreased as the intimacy of the anticipated setting increased, while attraction to an informal teacher increased with increasing setting intimacy. In Experiment 2, agreement on intimate topics promoted liking for a peer while no effect was found for agreement on superficial topics. This effect only emerged for intimate interaction settings, supporting the intimacy threshold hypothesis. High positive correlations between distance preference and attraction were obtained in Experiment 1, while analogous data obtained in Experiment 2 had less clear implications.     

ABSTRACTS OF LITERATURE

Schizophrenia is due to a combination of genetic and environmental factors. The author asserts that there has previously been an error in conceiving the patient as being molded completely by external circumstances. In fact, it is the patient's behavior, which is a transformation of family irrationality, that constitutes schizophrenia. In 75 per cent of cases of schizophrenia seen by the author in private practice, the mother did not fit the image of the so-called “schizophrenogenic mother.” In this technique for teaching family therapy, the students take the roles of the family. Procedures, selection of players, formulating the problem, the value of the experience, and ground rules are described. This is a case report and follow-up over nine years of an alcoholic woman. The patient and husband were treated for 35 sessions by cotherapists in conjoint marital therapy. Although there was improvement in the family patterns and in drinking behavior during the treatment, the improvement did not last after termination. The case suggests that marital therapy in the absence of other treatment interventions is ineffective in changing the long-run course of women alcoholics. Based on the author's practice on an inpatient unit that specializes in the study of aggressive behavior, he describes family dynamics and treatment when the identified patient suffers from “episodic violent behavior.” The sample focuses on adolescents, most of whom had episodes of suicidal behavior and who had some evidence of “organic involvement.” Typical family patterns include overly close alliances by the adolescent with one or both parents and transmission by parents of inconsistent values regarding aggression. Family therapy is seen as the preferred treatment approach and emphasizes family ways of handling dyscontrol episodes and the responsibility of the patient for his or her actions. No results are reported. This study attempts to link family variation and core relationships in types of families with the mental health of children. Sample was from a black, poor, urban community defined in terms of the adults present in the home. Eighty-six family types were found falling into ten major classes. Measures of mental health in children were done on psychological well-being of the children and on Social Adaptational Status. Results indicate that family type is strongly related over time to child's SAS and his or her psychological well-being. Mother-alone families entail the highest risk in terms of social maladaptation and psychological well-being of the child; the presence of certain second adults has important ameliorative functions—mother/grandmother families being nearly as effective as mother/father families, with mother/stepfather families similar to mother-alone in regard to risk. Inferences from this data and implications and interventions are discussed. This is a clinical essay on the role of family therapy for black families. In addition to the usual family stresses, black families are subject to the additional strain of discrimination. Support is achieved mostly from the family and from the kinship network, rather than the community. Treatment strategies for this situation are proposed. This essay reviews recent regulations concerning consent procedures and protection of privacy as they apply to children and their families. Rigorous sample selection, nearly complete follow-up, and objective assessment of outcome are virtually impossible at this point. It is concluded that compliance with current “subjects' rights” regulations sometimes seems potentially more harmful to the subjects than the research itself. One case example is presented in support of the hypothesis that brief family therapy has the potential to lead to individual personality changes that are long-lasting. The identified patient was a 15½ year old boy with the symptom of having a falsetto voice. Father, mother, and child were seen in twelve family therapy sessions with changes in the boy's self-image documented in “man-figure” drawings. Nine-month follow-up revealed no recurrence of the presenting symptom and an improvement in social and familial relationships of the identified patient. This is another in a series of papers from a divorce-counseling project. The focus in this paper is on preventive clinical interventions developed for children of various ages in divorcing families. Developmental assessment was achieved with a “brief” history from the parents, detailed information from school, and “direct observation” of the child. This paper covers treatment strategies, interventions, failures, therapist's role, and professional dilemmas in divorce counseling of 60 families with 131 children between the ages of 3 and 18 at the time of divorce. The technique of counseling was to see one parent and child separately by the same therapist three to six times over a three-month period. This is a research study to provide data on the question of whether the disturbed behavior of parents with a schizophrenic child preexists or is a response to an identified patient's pathology. Method was to administer a conceptual task called the Twenty Questions Task individually to each family member and to the family as a unit with a sample of 36 schizophrenic families, 13 non-schizophrenic controls, and 38 normal controls. Results “indicated that far more schizophrenic sons than control sons were much more efficient individually than with their families.” A number of schizophrenic sons performed competently as individuals, but the subsequent performance of parents and sons together on the same task was generally inferior to that of the son alone. Results suggest that the parental behavior plays a part in the etiology of schizophrenia.     

Semantic and episodic constraints on the use of surface-order cues in the comprehension of locative sentences

Comprehension of ambiguous three-term locative sentences such as The book is on the desk in the crate was examined in a verification experiment. Subjects consistently chose a representation in which the spatial ordering of the objects described was congruent with the surface order of terms in the sentence. This rule was overridden, however, by the presence of semantic constraints among the terms (e.g., The shirt is in the house on the chair). When the order of locative clauses within each sentence was reversed in the second half of the experiment, subjects tended to change their representation to conform with the new surface order if the initial coding had been based on surface order. This change occurred more frequently when the objects involved more abstract, geometric shapes. The importance of syntactic, semantic, and episodic information in the comprehension of sentences is discussed.This research was conducted by the second author under the directorship of the first author.     

ABSTRACTS OF LITERATURE

Two case examples are presented in support of the hypothesis that family therapy is useful in situations in which the identified patients are students at a university counseling center. The core dynamic issues focus around separation from parents. It is felt that the family therapy is a useful adjunct to the individual psychotherapy.