The Motivating Potential of Leader Behaviors: A Comparison of Two Models1

The motivating potential of leader behaviors was investigated in a comparative test of two models relating leader behaviors, perceived role clarity, psychological influence, perceived self-competence, self-determination, and intrinsic motivation. Based on the data from 422 naval personnel and their immediate supervisors, it would appear that leaders' informational and controlling behaviors influence subordinates' perceptions of role clarity and psychological influence. Self-determination and self-competence also influence these perceptions. Psychological influence increases intrinsic motivation but role clarity influences intrinsic motivation only indirectly through its influence on psychological influence.     

The effects of muscle relaxation and stress on the blood pressure levels of normotensives

Shoemaker and Tasto (1975) found that progressive muscle relaxation lowers the blood pressure levels of essential hypertensives to within a normal range under laboratory conditions. As a sequel to this study the effects of muscle relaxation and stress on the blood pressure levels of normotensives were studied. One group was taught relaxation, one group was stressed, one group read, and one group did nothing. Blood pressure measurements taken immediately after the completion of these tasks indicated that muscle relaxation does not lower the blood pressure levels of normotensives but that stress significantly raises both the systolic and diastolic levels.Level of arousal can, at least in one sense, be viewed as occurring on a dimension defined by extreme anxiety at one end and extreme relaxation at the other. Research on the physiological correlates and/or defining properties of arousal has produced inconsistent and equivocal results. Little work has been done relating blood pressure levels to arousal, however. Shoemaker and Tasto (1975) found a consistent and predictable drop in the blood pressure levels of essential hypertensives as a result of progressive muscle relaxation. In their study those subjects with the highest blood pressure levels showed the greatest drop while those with moderately high levels showed moderate drops and those with the lowest levels (yet still above normal) showed the least amount of change. The amount by which blood pressure dropped as a result of progressive relaxation was positively correlated with the pretreatment level of blood pressure. The result of progressive relaxation was to lower blood pressure levels to within a normal range, with all subjects appearing to approach a lower asymptotic level. Because of the consistent picture which began to emerge, the question arose as to whether blood pressure might be a reliable physiological correlate of the relaxation-anxiety dimension.The more specific questions emanating from this issue were: what effect does progressive relaxation have on the blood pressure levels of normotensives; what effect does stress have on the blood pressure levels of normotensives; and, what effect does stress have on the blood pressure levels of essential hypertensives? Since we could not immediately foresee the benefits that would outweigh the potential harm that might arise by placing hypertensives under stress, this study was limited to addressing the first two questions.Since the blood pressure levels of normotensives are probably at an optimal level for the physiological functioning of the organism, lower levels would be physiologically nonadaptive. and thus progressive relaxation should not lower the blood pressure levels of normotensives as it does those of essential hypertensives. On the other hand, if the elevated blood pressure levels of essential hypertensives are at least in part the result of a stress reaction, it would be expected that the blood pressure levels of normotensives might rise under stress conditions.     

A comparison of auditory monitoring performance in blind subjects with that of sighted subjects in light and dark

Two experiments were performed in which blind Ss, sighted Ss working in the dark, and sighted Ss working in the light were compared as to their efficiency on an auditory watchkeeping task. Absolute and differential auditory thresholds were measured in both experiments, and in the second experiment the groups also underwent a signal detection session under alerted conditions. There was some inconsistency as to relative performance of the sighted groups, but in both experiments the blind Ss were superior on the auditory watchkeeping task as to signals detected and effective sensitivity (d’). 1 This difference was not attributable to a difference in auditory sensitivity or to a criterion adopted for     

Behavioral measurements in nutritional studies

Studies on the effects of dietary deficiencies have shown marked behavioral impairments in rats deprived of adequate quantities of specific vitamins. In at least one study, such impairment was evident even when body weight did not differ from vitamin-supplemented but pair-fed controls. Recently, experiments have demonstrated that restriction of maternal dietary intake during gestation and lactation results in a variety of physiological and behavioral abnormalities in the progeny. These offspring are stunted, retarded in neuromotor development, impaired in ability to learn a maze, slow in extinction of the conditional reflex and show a low level of exploratory activity, a high degree of emotional behavior and marked anti-social interaction. Furthermore, patterns of change with increasing age in some of these measurements also distinguish these experimental animals from controls born of adequately-fed dams.     

Image tracing: An analysis of its effectiveness in children's pictorial discrimination learning

Previous research has shown that requiring children to trace from memory the correct member of a pictorial discrimination pair markedly facilitates performance. The experiment reported here offers support for a presumed component of this learning strategy, namely, “memory imagery.” In particular, subjects who traced directly on top of the correct picture did not perform as well as those who traced it from memory. Various theoretical explanations of the image-tracing phenomenon are considered, including depth of processing, dual coding, and frequency.     

Assessment of the aftermath of rape: Changing patterns of fear

In order to test a social learning theory model which states that fear and anxiety responses are classically conditioned by a terror-inducing rape experience, 46 recent rape victims and 35 nonvictims matched for age, race, and neighborhood of residence were assessed with the 120-item Modified Fear Survey at four postrape intervals: (1) 6–10 days, (2) 1 month, (3) 3 months, and (4) 6 months. Victims were significantly more fearful than nonvictims, and victim fears declined somewhat over time but remained at high levels at the 6-month postrape period. Content analysis of highly feared situations revealed that most fears were rape related in that they were rape cues, rape-precipitated concerns, and/or cues signaling vulnerability to subsequent attack. Patterns of fear appeared to change such that attack vulnerability cues were most feared.This research was supported by NIMH Grant No. 1 RO1 MH29602 from the National Center for Prevention and Control of Rape.An earlier version of this article was presented at the Twelth Annual Convention of the Association for Advancement of Behavior Therapy, Chicago, November 18, 1978.     

Stress and blood glucose in type II diabetes mellitus

Six adults with non-insulin dependent diabetes mellitus participated in a laboratory procedure to determine the effects of an acute Stressor, mental arithmetic, on blood glucose, cardiovascular, and subjective indices of stress. They then completed 12 days home monitoring of stressful events, subjective stress, and blood glucose. Diet and activity were controlled to evaluate the direct effects of stress on blood glucose in the natural environment. Laboratory results showed significant increases in blood glucose, cardiovascular (HR and SBP), and subjective stress ratings during the mental arithmetic task when compared to a resting condition. Home monitoring data were consistent with the laboratory findings; blood glucose range tended to be greater on high vs low stress days, especially when the difference between high and low stress was greatest. These findings suggest that the laboratory stress induction procedure was externally valid and that in the natural environment, stress has a hyperglycemic effect on blood glucose.     

Why High School Students Aspire to Emigrate: Evidence from Greece

This paper investigates why Greek high school students aspire to emigrate, in relation to their educational and socio-economic background. Through fieldwork research conducted at three specialist high schools in Thessaloniki, three main conclusions have been drawn. Firstly, potential emigrants are ambitious, with high educational and professional expectations and a clear migration plan. Secondly, they are middle and upper middle class and excel at school—in socio-economic and educational terms, they therefore constitute the most dynamic Greek youths. Thirdly, in a period of recession on a European level, the alarming fact is that student emigration can undermine recovery for a country in crisis such as Greece. That is, middle-class shrinkage caused by the recession can be aggravated by emigration, which in turn might cost the loss of developmental human resources for Greece and a deepening of the recession. This can further stimulate migration, resulting in a vicious circle between crisis and emigration. Furthermore, if potential emigrants do not return because temporary emigration for studies becomes permanent migration for work, the economic crisis is worsened, and Greece’s prospects for development are further undermined.     

Five Dimensions of Faith and Spiritually of Older African American Women Transitioning Out of Homelessness

Background Homelessness among older African American women is emerging as a serious social problem. The increasing cost of living, diminishing community resources, and shrinking retirement benefits, as well as reduced social services are resulting in greater numbers of older minority women becoming homeless. Aims This investigation explores the relevance of faith and spirituality to an advocacy assessment designed to help participants resolve issues that operate as barriers to their leaving and staying out of homelessness. Methods A substudy of a larger research and development project was undertaken, in which qualitative interview methods were used to illuminate the role of faith and spirituality resources in the lives of 84 older homeless African American women. Comparative thematic analysis of illustrative cases was undertaken to better understand the role of faith and spirituality in the women’s lives and in how they used faith and spirituality in coping with homelessness. Findings Five dimensions of faith and spirituality, (a) identity and beliefs; (b) affiliation and membership; (c) involvement; (d) practices; and (e) benefits, served as promising resources in understanding life spaces of homeless minority women and identified promising advocacy strategies. Two cases describe the realities of homelessness for older minority women endeavoring to transition out of homelessness and illustrate how faith and spirituality can buffer stress, facilitate coping, and sustain motivation. Conclusions How older homeless African American women use their faith and spiritual resources to cope with demands of homelessness, challenges of transition, and recovery from the multiple traumas resulting from being homeless makes the assessment of faith and spirituality an important part of the advocacy process.     

The Substance Abuse Counseling Needs of Women in the Criminal Justice System: A Needs Assessment Approach

The authors assessed the substance abuse counseling needs of women in the criminal justice system using interviews (n = 304) and surveys (n = 1,170). On the basis of the results, the authors call for gender‐specific treatment as well as family‐oriented support for women who are mothers.