Development and validation of the Inventory of Depression and Anxiety Symptoms (IDAS)

The authors describe a new self-report instrument, the Inventory of Depression and Anxiety Symptoms (IDAS), which was designed to assess specific symptom dimensions of major depression and related anxiety disorders. They created the IDAS by conducting principal factor analyses in 3 large samples (college students, psychiatric patients, community adults); the authors also examined the robustness of its psychometric properties in 5 additional samples (high school students, college students, young adults, postpartum women, psychiatric patients) who were not involved in the scale development process. The IDAS contains 10 specific symptom scales: Suicidality, Lassitude, Insomnia, Appetite Loss, Appetite Gain, Ill Temper, Well-Being, Panic, Social Anxiety, and Traumatic Intrusions. It also includes 2 broader scales: General Depression (which contains items overlapping with several other IDAS scales) and Dysphoria (which does not). The scales (a) are internally consistent, (b) capture the target dimensions well, and (c) define a single underlying factor. They show strong short-term stability and display excellent convergent validity and good discriminant validity in relation to other self-report and interview-based measures of depression and anxiety.     

Common and specific dimensions of self-reported anxiety and depression: the BDI-II versus the BDI-IA

The Beck Depression Inventory-II (BDI-II) [Beck, A. T., Steer, R. A. & Brown, G. K. (1996). Manual for Beck Depression Inventory-II. San Antonio, TX: Psychological Corporation.] and Anxiety Inventory (BAI) [Beck, A. T. & Steer, R. A. (1993a). Manual for the Beck Anxiety Inventory. San Antonio, TX: Psychological Corporation.] were administered to 840 outpatients who were diagnosed with various types of psychiatric disorders to determine whether the general symptom compositions and relative amounts of variance of the common and specific dimensions of self-reported anxiety and depression for these instruments would be comparable to those that had been found by Steer et al. [Steer, R. A., Clark, D. A., Beck, A. T. & Ranieri, W. F. (1995). Common and specific dimensions of self-reported anxiety and depression: A replication. Journal of Abnormal Psychology, 104, 542–545.] with the BAI and amended Beck Depression Inventory (BDI-IA) [Beck, A. T. & Steer, R. A. (1993b). Manual for the Beck Depression Inventory. San Antonio, TX: Psychological Corporation.]. A Schmid–Leiman transformation was used with the iterated-principal-factor pattern matrix of the BAI and the BDI-II loadings and indicated that the overall symptom compositions and relative amounts of variance that were explained by the one common and two specific anxiety and depression dimensions were comparable to those previously found with the BDI-IA.     

Psychometric Meta‐Analysis of the English Version of the Beck Anxiety Inventory

This meta‐analysis reviewed 192 scholarly works from 1993 to 2013 using the Beck Anxiety Inventory (Beck & Steer, 1993 ). Aggregated internal consistency (coefficient alpha) was .91 (k = 117), and test–retest reliability was .65 (k = 18). Convergent comparisons were robust across 33 different anxiety instruments and the Beck Depression Inventory–II (Beck, Steer, & Brown, 1996 ). Structural validity primarily supported the original 2‐factor solution proposed by Beck and Steer ( 1993 ), and diagnostic accuracy varied according to the sample size and criterion cutoff score.     

Psychometric Properties and Factorial Structure of the State Trait Anxiety Inventory-Trait Version (STAI-T) in Caribbean University Students

The study investigated the psychometric properties of the State Trait Anxiety Inventory—Trait Scale (STAI-T: Spielberger, 1983) in a Caribbean university student sample. Participants were 415 undergraduate students (75% female) who completed the State-Trait Anxiety Inventory-Trait Version (STAI-T; Spielberger, 1983), Beck Depression Inventory-II (BDI-II; Beck, Steer, & Brown, 1996), the Zung Self-Rating Depression Scale (SDS; Zung, 1965), the Ego Resiliecy-89 (ER-89; Block, 1989), and the Perceived Stress Scale-Ten Item Version (PSS-10; Cohen et al., 1983). Confirmatory factor analysis (CFA) was conducted to examine the construct validity of the trait anxiety scale in terms of factor structure, convergent, discriminant, and nomological validities. CFA results revealed that a two-factor solution (trait anxiety absent and trait anxiety present) provided significantly better fit than the one-factor model of trait anxiety. There was clear evidence of convergent validity, discriminant validity, and nomological validity of the scale. Results support the psychometric adequacy of the STAI-T for use with Caribbean university students.     

Sociotropy and autonomy: the nature of vulnerability

Sociotropy and autonomy are 2 personality dimensions related to an individual's vulnerability to depression (A. T. Beck, 1983). The Sociotropy-Autonomy Scale (D. A. Clark, R. A. Steer, A. T. Beck, & L. Ross, 1995) and the Personal Style Inventory (C. J. Robins et al., 1994) were developed to assess these personality dimensions independent of each other. The present study is an examination of the relationship between the 2 scales and an attempt to specify the various factors that emerge when the items of the 2 scales are integrated. Participants (N = 514) responded to the Personal Style Inventory, the Sociotropy-Autonomy Scale, and the Beck Depression Inventory (A. T. Beck & R. A. Steer, 1987). A principal component analysis on all of the items of the 2 scales revealed a four-factor structure (2 sociotropy and 2 autonomy). The author examined the relationships between depression, the 4 factors, and the 2 original scales and discussed the results in the context of vulnerability to depression.     

Development and Validation of the Xhosa Translations of the Beck Inventories: 3. Concurrent and Convergent Validity

This article provides data on the validity of the Xhosa versions of the Beck Depression Inventory-II (XBDI-II), the Beck Hopelessness Scale (XBHS) and the Beck Anxiety Inventory (XBAI) based on a sample of 122 Xhosa respondents which included students and patients. For patients, clinicians completed rating scales of Depression and Anxiety symptoms. In tests of concurrent validity, depressed patients had significantly higher scores on the XBDI-II and XBHS than students or patients who were not depressed. Similarly anxious patients had higher scores on the XBAI than students and patients who were not anxious. Correlations with clinicians' ratings were:.91 for XBDI-II scores and depression ratings, and.88 for XBAI scores and anxiety ratings. Correlations between the three translated scales were similar to those for the original scales. These analyses provide evidence that the translated scales have levels of concurrent and convergent validity comparable to the originals.     

Differential roles of depressive and anxious symptoms and gender in defensiveness

Among a sample of Air Force cadets facing the prospect of basic training (N= 1,190; 1,005 men and 185 women), the influence of a defensive test-taking style on measures of depressive and anxious symptoms was examined. Participants completed the Beck Depression Inventory (Beck & Steer, 1987) and the Beck Anxiety Inventory (Beck, Epstein, Brown, & Steer, 1988), as well as the MMPI (Hathaway & McKinley, 1943) L scale. Results supported hypotheses that defensiveness would affect a self-report measure of depression but not a self-report measure of anxiety and would do so more among men than women. Applied implications of the results are discussed.     

Generalized anxiety and panic disorders: Response to Cox, Cohen, Direnfeld, and Swinson (1996)

Contrary to the contention of Cox, Cohen, Direnfeld and Swinson (1996, Behaviour Research and Therapy, 34, 949–954) that the Beck Anxiety Inventory (BAI; Beck & Steer, 1993, Manual for the Beck Anxiety Inventory) measures primarily symptoms associated with panic attacks rather than anxiety in general, we propose that the higher level of anxiety found in patients with panic disorders not only is not an artifact of the BAI's symptom content, but patients with panic disorders truly have more anxiety than patients with other types of anxiety disorders. Furthermore, the BAI contains symptoms present in other anxiety disorders, besides panic disorder, and specifically includes 11 symptoms of generalized anxiety disorder (GAD). The BAI and revised Hamilton Anxiety Rating Scale (HARS-R; Riskind, Beck, Brown & Steer, 1987, Journal of Nervous and Mental Disease, 175, 474–479) scores of 274 (69%) outpatients with panic disorders and 123 (31%) outpatients with GAD were found to differentiate these two diagnostic groups equally and significantly. The panic disorder outpatients had higher scores on both the BAI and the HARS-R than did the GAD patients. Thus, Cox et al.'s (1996) speculation about the BAI's yielding spuriously high levels of anxiety in patients with panic disorders revives an important issue relevant to the relation of panic disorder to GAD.     

A depressive symptom scale for the California Psychological Inventory: construct validation of the CPI-D

To facilitate life span research on depressive symptomatology, a depressive symptom scale for the California Psychological Inventory (CPI) is needed. The authors constructed such a scale (the CPI-D) and compared its psychometric properties with 2 widely used self-report depression scales: the Beck Depression Inventory and the Center for Epidemiological Studies Depression Scale. Construct validity of the CPI-D was examined in 3 studies. Study 1 established content validity, classifying CPI-D items into Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition depressive symptoms. Study 2 used 3 large samples to gather evidence for reliability and validity: correlational analyses demonstrated alpha reliability and convergent and discriminant validity; factor analysis provided evidence for discriminant validity with anxiety; and regression analyses demonstrated comparative validity with existing standard PI scales. Study 3 used clinician ratings of depression and anxiety as criteria for external validity.     

The Depression Anxiety Stress Scale-21: Spanish Translation and Validation with a Hispanic Sample

The English-language version of the Depression Anxiety Stress Scale-21 (DASS-21) was professionally translated into Spanish and field-tested among 98 bilingual Hispanic adults. Participants who were diagnosed with an anxiety disorder on the Anxiety Disorders Interview Schedule-IV completed the DASS-21, the Beck Depression Inventory-II, and the Beck Anxiety Inventory. Results indicated strong indices of internal consistency and expected patterns of discriminant, convergent, and structural validity. A confirmatory factor analysis compared a model fit of a first order 1-factor model, a first order 3-factor model, and a second order factor model. The latter 2 models were significantly better than the 1-factor model. Psychometric data were comparable to those of an English version. Clinicians and researchers in need of a brief, Spanish-language, screening measure of general psychopathology may want to consider this newly translated DASS-21.     

The Beck Anxiety Inventory-Trait (BAIT): a measure of dispositional anxiety not contaminated by dispositional depression

We describe development of the Beck Anxiety Inventory-Trait (BAIT), a measure of trait anxiety. In Study 1 with 191 undergraduates, the BAIT correlated higher with another trait-anxiety measure than with state anxiety and trait depressiveness and lower with depressiveness than the other trait-anxiety measure did. In Study 2 (Ns of 149 undergraduates initially and 107 at 3 weeks later), the BAIT demonstrated convergent validity against the Beck Anxiety Inventory (BAI; Beck, Epstein, Brown, & Steer, 1988) and self-rated trait anxiety plus discriminant validity against abstract curiosity. In Study 3 (Ns of 161 undergraduates initially and 121 at 3 weeks later), the BAIT correlated more highly with another anxiety measure than with depression, stress, positive affect, and negative affect. It also showed good internal consistency across studies and high stability in Studies 2 and 3, higher than the BAI's in Study 2. Factor analyses across studies all supported 2 factors, 1 Somatic and 1 Subjective.     

Development of a Scale to Assess Posttraumatic Stress Disorder

This study presents a newly developed self-report Posttraumatic Stress Scale (PTSS) based on the DSM-IV (American Psychiatric Association, 1994). The scale assesses the trauma experienced by people via the specific criteria of reexperiencing, numbing and avoidance, hyperarousal, and functioning. The instrument was validated on 52 Vietnam veteran subjects diagnosed with posttraumatic stress disorder (PTSD), 64 subjects who were attending professional counseling for trauma-related incidents, and 176 subjects who had never been diagnosed with PTSD or had professional counseling. The test survey comprised the PTSS, Beck's Anxiety Inventory, Beck's Depression Inventory, Impact of Events Scale, the 12-item General Health Questionnaire, Inventory of Depressive Symptomatology, and Symptoms Checklist–90R. The test-retest reliability of the scale was assessed over a four- to six-week period. The scale had a high test-retest reliability and showed high convergent and concurrent validity. Construct validity as assessed through the comparison between the three groups was high; however, factor analysis revealed only two factors instead of the three factors assumed in the DSM-IV. Overall, the scale may be used by clinicians or clients.     

A Norwegian adaptation of the Penn State Worry Questionnaire: factor structure, reliability, validity and norms

A Norwegian version of the Penn State Worry Questionnaire (PSWQ) was administered to 304 undergraduate students together with the Beck Depression Inventory (BDI), the State-Trait Anxiety Inventory (STAI) and the Maudsley Obsessive Compulsive Inventory (MOCI). The PSWQ was also administered to a community sample comprising 879 subjects, together with the Beck Anxiety Inventory (BAI), the Beck Depression Inventory II (BDI II) and the White Bear Suppression Inventory (WBSI). Structural equation modeling showed that a three-factor solution of the PSWQ gave the best goodness of fit. The Norwegian version of the PSWQ demonstrated adequate psychometric properties in terms of reliability and validity in both samples. Females scored higher than males on PSWQ.     

Psychometric evaluation of the Beck Depression Inventory-II with primary care medical patients.

This study evaluated the psychometric characteristics of the Beck Depression Inventory-II (BDI-II; A. T. Beck, R. A. Steer, & G. K. Brown, 1996) in a primary care medical setting. A principal-components analysis with Promax rotation indicated the presence of 2 correlated factors, Somatic-Affective and Cognitive, which explained 53.5% of the variance. A hierarchical, second-order analysis indicated that all items tap into a second-order construct of depression. Evidence for convergent validity was provided by predicted relationships with subscales from the Short-Form General Health Survey (SF-20; A. L. Stewart, R. D. Hayes, & J. E. Ware, 1988). A receiver operating characteristic analysis demonstrated criterion-related validity: BDI-II scores predicted a diagnosis of major depressive disorder (MDD), as determined by the Primary Care Evaluation of Mental Disorders (PRIME-MD) Patient Health Questionnaire (PHQ). This study demonstrated that the BDI-II yields reliable, internally consistent, and valid scores in a primary care medical setting, suggesting that use of the BDI-II in this setting may improve detection and treatment of depression in these medical patients.     

Use of the Beck Depression Inventory-II with depressed geriatric inpatients

To provide information about the clinical utility of the Beck Depression Inventory-II (BDI-II) [Beck, A.T., Steer, R.A., & Brown, G.K. (1996b). Manual for the Beck Depression Inventory-II. San Antonio, TX: Psychological Corporation] with geriatric inpatients, the BDI-II was administered to 130 psychiatric inpatients who were 55 years old or above and who were diagnosed with principal DSM-IV major depressive disorders (MDD) (N = 85, 65%) or adjustment disorders with depressed mood (N = 45, 35%). The internal consistency of the BDI-II was high (coefficient alpha = 0.90), and its total score was not significantly related to sex, age, or ethnicity. An iterated maximum-likelihood factor analysis found the Cognitive and Noncognitive dimensions which have been reported for the BDI-II by Steer and co-workers (Steer R.A., Ball R., Ranieri W.F., & Beck A.T. (1999). Dimensions of the Beck Depression Inventory-II in clinically depressed outpatients. Journal of Psychopathology and Behavioral Assessment, 55, 117-128) in a younger sample of clinically depressed psychiatric outpatients. The mean BDI-II total score of the 85 geriatric inpatients with MDD was also comparable to that of 42 younger (< or = 54 years old) inpatients with MDD. The results were discussed as supporting the use of the BDI-II with clinically depressed geriatric inpatients.     

Common and Specific Dimensions of Self-Reported Anxiety and Depression in Adolescent Outpatients

To investigate the common and specific dimensions of anxiety and depression in adolescents, the Beck Anxiety Inventory (BAI; Beck, A. T., & Steer, R. A. Manual for the Beck Anxiety Inventory. San Antonio, TX: Psychological Corporation 1993a) and Beck Depression Inventory-II (BDI-II; Beck, A. T., Steer, R. A., & Brown, G. K. Manual for Beck Depression Inventory (2nd Ed.). San Antonio, TX: Psychological Corporation 1996) were administered to 840 adolescent (13–17 years old) outpatients who were diagnosed with various types of psychiatric disorders. A Schmid-Leiman transformation was used with the iterated-principal-factor pattern matrix of the BAI and the BDI-II loadings. The amounts of orthogonalized common variance that were explained by the one second-order (56%), one first-order depression (22%), and two first-order anxiety (22%) dimensions were comparable to those previously reported for adult psychiatric outpatients. The results were discussed as supporting the construct of negative affectivity that is proposed in L. A. Clark and Watson’s (1991) tripartite model of anxiety and depression.

Psychometric properties of the Beck Depression Inventory-II in low-income, African American suicide attempters

Cross-cultural examinations of the validity and reliability of the Beck Depression Inventory-II (Beck, Steer, Ball, & Ranieri, 1996) is essential for its use in assessment and monitoring of the effectiveness of suicide interventions across racial groups. We tested the fit of a second-order, two-factor model and the internal reliability of the BDI-II in a sample of 133 African Americans with a recent history of suicide attempts. Additionally, we examined the convergent validity with the Hamilton Rating Scale for Depression (Reynolds & Koback, 1995). The results indicate that the BDI-II is a reliable and valid measure of depressive symptoms for African American suicide attempters.     

Psychometric comparability of English- and Spanish-language measures of anxiety and related affective symptoms

An array of measures of anxiety and related disorders (viz., Albany Panic and Phobia Questionnaire; Anxiety Sensitivity Index; Beck Anxiety Inventory; Beck Depression Inventory-II; Body Sensation Questionnaire; Fear Questionnaire; Padua Inventory; Penn State Worry Questionnaire; Post-Traumatic Stress Disorder Diagnostic Scale; Social Interaction Anxiety Inventory; and Worry Scale) was edited or translated from English into Spanish. Following an extensive edit and translation process, bilingual participants (n = 98) were assessed with the English and Spanish versions of these measures. Coefficient alphas were excellent and comparable across language versions. Means and standard deviations were also comparable across language versions. Evidence of convergent and discriminant validity was found for both language versions. The two language versions of each measure correlated highly with each other. This psychometric comparability adds confidence in using the newly edited or translated Spanish language measures in clinical practice and research.     

Convergent validity of the Arabic scale of mental health

To estimate the convergent validity of the Arabic Scale of Mental Health, three convenience separate samples (ns = 162, 168, 138) of volunteer Kuwaiti college students, ages 19 to 32 years, responded anonymously to several scales measuring psychopathology. Analyses showed total ratings for the scale correlated negatively with those of the Kuwait University Anxiety Scale, Factorial Arabic Neuroticism Scale, Somatic Symptoms Inventory, Arabic Scale of Insomnia, the nine subscales of the Symptom Checklist-90-R, the Beck Depression Inventory, and the seven subscales of the General Health Questionnaire. Three separate correlation matrices were subjected to principal components analyses for which a single bipolar factor, Mental health versus psychopathology, was retained in all three matrices. Loadings for the Arabic Scale of Mental Health were -.76, -.64, and -.76. It was concluded that this scale has suitable convergent validity.     

The depressive personality disorder inventory and current depressive symptoms: implications for the assessment of depressive personality

The Depressive Personality Disorder Inventory (DPDI; Huprich, Margrett, Barthelemy, & Fine, 1996; see Appendix) was created to assess Depressive Personality Disorder in clinical and nonclinical samples. Since its creation, the DPDI has been used in multiple studies, and the psychometric properties of the measure have generally supported its reliability, convergent validity, and construct validity; however, evidence for the measure's discriminant validity has been mixed. Specifically, the DPDI tends to correlate highly with measures of current depressive symptoms, which limits its efficacy in differentiating current depressive symptoms from a depressive personality structure. A principal components analysis of 362 individuals who completed both the DPDI and Beck Depression Inventory (BDI-II; Beck, Steer, & Brown, 1996) found that 49% of the variance was accounted for in two components. Seven items from the DPDI loaded more strongly on the first component composed of many BDI-II items. These items were removed in order to create a measure believed to assess DPD without the confounding influence of current depressive symptomology. Principal components analysis of the revised measure yielded three components, accounting for 46% of the variance. The revised DPDI was used to calculate convergent, discriminant, and construct validity coefficients from measures used in former studies. Virtually no improvement in the validity coefficients was observed. It is concluded that assessing DPD via self-report is limited in its utility.