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Biomedical subjects

D L Chambless

Publications and source records attributed to D L Chambless.

At least 37 records · Page 2Linked to original sources
PubMed1995

Adherence during sessions and homework in cognitive-behavioral group treatment of social phobia.

The relationship between adherence to group cognitive-behavioral treatment instructions and outcome was examined for 52 social phobic clients. Less symptomatic clients were no more likely to adhere to treatment instructions than more highly symptomatic clients. Clients were less likely to participate during group treatment sessions if they were higher on avoidant personality traits, and were less likely to complete self-directed exposures if they were more paranoid. Dependent clients tended to complete homework assignments more than less dependant clients. With one exception, adherence to treatment instructions for between session homework was not related to any of the outcome measures at the completion of treatment. However, at the 6-month follow-up, clients who adhered more to homework instructions reported less anxiety during the speech, and also tended to report greater decrements in anxiety and larger changes in their avoidant behavior. These data suggest that homework may be more important in the long-run, when the therapist is no longer present to prompt exposure.

Adult↗
PubMed1995

Reliability and validity of the Yale-Brown Obsessive-Compulsive Scale.

The reliability and validity of the Yale-Brown Obsessive-Compulsive Scale were examined according to a multi-trait multi-method approach in a sample of 54 outpatients with obsessive-compulsive disorder (OCD). Internal consistency was acceptable but was improved by deletion of items concerning resistance to obsessions and compulsions. Inter-rater reliability was excellent, but test-retest reliability over an average interval of 48.5 days was lower than desirable. The YBOCS demonstrated good convergent validity with most other measures of OCD, but divergent validity vis à vis depression was poor. Analyses of new items assessing avoidance and the duration of obsession-free and compulsion-free intervals indicated that only the avoidance rating added meaningfully to the full scale score. In future research the authors recommend deletion of the resistance items and inclusion of the avoidance item to yield a revised 9-item YBOCS total score.

Adult↗
PubMed1995

The usefulness of the Obsessive Compulsive Scale of the Symptom Checklist-90-Revised.

The reliability and validity of the SCL-90-R Obsessive Compulsive Scale were examined using a multi-trait multi-method approach in a sample of 54 outpatients with obsessive-compulsive disorder (OCD). The OC scale proved to be internally consistent. Evidence for convergent validity was mixed, and the results suggest poor divergent and criterion-related validities. The scale demonstrated sensitivity to changes with behavioral treatment. Overall, the SCL-90-R proved to be a poor measure of OCD symptoms.

Adult↗
PubMed1993

Memory in sub-clinical obsessive-compulsive checkers.

In a series of experiments we extended the research on possible memory deficits in subclinical obsessive-compulsive Ss who reported excessive checking. Using a variety of memory tests we compared 20 subclinical checkers to 20 Ss without obsessive-compulsive symptomatology. Contrary to hypothesis, checkers remembered self-generated words better than read words just as much as did normals, but they were more likely than normals to report thinking they had studied words that, in fact, had not been on the study list. Further, they more often confused whether they read or generated the words at study. Checkers did not appear to perseverate on already-recalled words on repeated free recall tests any more than did normals. However, checkers remembered fewer actions overall and more often misremembered whether they had performed, observed, or written these actions. Such memory deficits may contribute to the development of excessive checking.

Adult↗
PubMed1993

Compliance during sessions and homework in exposure-based treatment of agoraphobia.

The relationship between compliance with cognitive-behavioral treatment instructions and outcome was examined for 56 agoraphobic clients treated with in vivo exposure and training in anxiety management strategies. Clients who complied more often with anxiety management instructions during treatment sessions tended to improve more on a behavioral avoidance test than those who were less compliant, but did not differ on three other outcome variables. Compliance with instructions for self-directed exposure between sessions was examined in a subset of 28 of these Ss. Clients who spent more time doing homework reported significantly greater decrements in fear of fear than less compliant clients and also tended to report larger changes on avoidance behavior. However, a quasi-experimental comparison of homework vs no-homework treatment protocols yielded no difference in outcome. Less compliant clients were more symptomatic pretreatment and rated their therapists as less caring and less self-confident.

Adult↗
PubMed1993

Cognitive therapy of anxiety disorders.

A review of studies of cognitive-behavioral therapy (CBT) for generalized anxiety disorder, panic disorder with and without agoraphobia, and social phobia indicates that CBT is consistently more effective than waiting-list and placebo control groups. In general, CBT has proved more beneficial than supportive therapy as well. Comparisons with active behavioral treatments provide more variable results. Converging evidence suggests that cognitive change may be a strong predictor of treatment outcome, but that such change may be produced by a number of therapeutic approaches. Pretest-posttest change with CBT is depicted in meta-analytic summary form for each disorder.

Agoraphobia↗
PubMed1990

Is agoraphobia harder to treat? A comparison of agoraphobics' and simple phobics' response to treatment.

Agoraphobia is reputed to be more difficult to treat than simple phobia. In a test of this supposition, 38 agoraphobics and 19 simple phobics were each given 10 sessions of graduated in vivo exposure. They were assessed before and after therapy using a behavioral avoidance test, behavioral diaries, and self-report measures. Analysis of covariance revealed unequivocal posttest differences only on self-assessed disability level; agoraphobics had changed less in their report of global disability immediately following treatment but not at follow-up. Sixty-eight percent of the simple phobics showed clinically significant improvement on avoidance of the Main Phobia, compared with 34% of the agoraphobics. On three other outcome measures, including more precise behavioral measures of phobia, agoraphobics and simple phobics responded equivalently to treatment. Given clinicians' impression about the comparative difficulty in treating agoraphobic clients, fewer differences in treatment response were obtained than were expected. Several possible explanations for this discrepancy are discussed.

Adult↗
PubMed1988

Widowhood, sexuality and aging: a life span analysis.

In an attempt to evaluate how widows of various ages adapt sexually to loss of a marital partner, 100 relatively healthy, community-dwelling widows between the ages of 40 and 89 completed a reliable 101-item questionnaire which evaluated three major areas: 1) barriers to sexual expression posed by age-related changes in body image, mood state and environmental context; 2) degree of unhappiness associated with loss of various marriage-oriented activities; and 3) perceived utility of various activities which indirectly might satisfy sexual and affectional needs. Controlling for income, education, heterosocial involvement, and family contact, and using level of morale and depression as corroborative measures, results showed specific age differences across variables assessed. In particular, younger widows, when compared with their older counterparts, viewed changes in body image, the dearth of unattached men, and limited financial resources for social activities as representing significant sexual barriers. Increasing age of the widow was associated with lower unhappiness ratings with loss of marriage-related activities. For the sample as a whole, greater unhappiness was expressed with the loss of nonsexual, heterosocial activity (e.g., conversation with a man, going places with a man). Results also indicated that, regardless of the widow's age, activities pertaining to her children and grandchildren, wearing attractive clothing, and expressing her spirituality are all effective in meeting affectional and sexual needs. Results are discussed within the context of older female sexuality, affectional adaptation to widowhood, and therapeutic implications directed at this neglected group.

Adaptation, Psychological↗
PubMed1982

The pubococcygens and female orgasm: a correlational study with normal subjects.

The relationship of pubococcygeal condition to orgasmic responsiveness in 102 women from a university community was examined in a controlled, prospective investigation. Pubococcygeal strength was measured with a perineometer while responsiveness was assessed by a standardized interview yielding reliable measures of self-reported orgasmic response. Subjects whose responsiveness might have been impaired by such factors as alcohol consumption, inadequate stimulation, and high sexual anxiety were excluded from analyses. Excellent within-session but poor across-session test-retest reliability of the perineometer measures was noted. Initial Strength Contracting proved to be the most reliable measure. Though the majority of the parous women had performed Kegel exercises after delivery, parity was negatively related to pubococcygeal strength on most measures. Contrary to experimental hypotheses, pubococcygeal strength was not found to be positively related to frequency or self-reported intensity of orgasm. Furthermore, women with higher pubococcygeal strength did not report that vaginal stimulation contributed more to attainment of orgasm, nor did they rate vaginal sensations during coitus as more pleasurable. Only in the case of pleasurability of orgasm through clitoral stimulation was a significant, though low, relationship obtained. Possible factors contributing to the discrepancy between these findings and previous uncontrolled investigations are discussed, as are the implications of these findings for the use of Kegel exercises in the treatment of orgasmic dysfunction.

Adult↗