Psychometric properties of the SUNYA revision of the psychosomatic symptom checklist (original) (raw)
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Development and Validation of the Inventory of Depression and Anxiety Symptoms (IDAS
Psychological Assessment, 2007
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 interviewbased measures of depression and anxiety.
Development and Initial Validation of the Counseling Center Assessment of Psychological Symptoms–34
… and Development, 2012
A short version of the Counseling Center Assessment of Psychological Symptoms–62 (CCAPS-62) was created via three studies. The final short version (CCAPS-34), which contains 34 items and 7 subscales, demonstrated good discrimination power, support for the proposed factor structure, strong initial convergent validity, and adequate test–retest stability over 1-week and 2-week intervals.
2012
Self-report measures of psychological distress or psychopathology are widely used and can be easily implemented as psychiatric screening tools. Positive psychological constructs such as vitality/optimism and work functioning have scarcely been incorporated. We aimed to develop and validate a psychological distress instrument, including measures of vitality and work functioning. A patient sample with suspected depressive, anxiety, and somatoform disorders (N ¼ 242) and a reference sample of the general population (N ¼516) filled in the 48-item Symptom Questionnaire (SQ-48) plus a battery of observer-rated and self-report scales (MINI Plus, MADR, BAS, INH, BSI), using a web-based ROM programme. The resulting SQ-48 is multidimensional and includes the following nine subscales: Depression (MOOD, six items), Anxiety (ANXI, six items), Somatization (SOMA, seven items), Agoraphobia (AGOR, four items), Aggression (AGGR, four items), Cognitive problems (COGN, five items), Social Phobia (SOPH, five items), Work functioning (WORK, five items), and Vitality (VITA, six items). The results showed good internal consistency as well as good convergent and divergent validity. The SQ-48 is meant to be available in the public domain for Routine Outcome Monitoring (ROM) and can be used as a screening/ monitoring tool in clinical settings (psychiatric and non-psychiatric), as a benchmark tool, or for research purposes.
Psychometric properties of the 21-item Depression Anxiety Stress Scale (DASS-21)
African Research Review, 2018
Depression, anxiety and stress are recognised as global public health problems especially in developing countries. Early detection of these disorders is essential to provide psychological interventions for individuals experiencing these negative emotional conditions. This study determined the Nigerian psychometric properties for the 21-item version of the depression, anxiety and stress scale among a sample of medical students. Two hundred and forty medical students from the Lagos State University College of Medicine, Lagos, Nigeria completed the depression anxiety and stress scale, state trait anxiety inventory and self-rating depression scale. The reliability, discriminative, concurrent and convergent properties were determined. The reliability of DASS-21 showed that it has excellent Cronbach's alpha values of 0.81, 0.89 and 0.78 for the subscales of depressive, anxiety and stress respectively. It was found to have excellent internal consistency, discriminative, concurrent and convergent validities. The depression and anxiety subscales of DASS-21 had good correlations with self-rating depression scale and state trait anxiety inventory. The DASS-21 was found to have
Social Indicators Research, 2014
Background: The original Psychological Strain Scales (PSS) was published with data from a sample of Chinese population, which consisted of four strain scales: value strain, aspiration strain, deprivation strain, and coping strain. This study aims to validate and develop the English version of the PSS instrument. Method: Together with the PSS, Moos's Coping Response Inventory (CRI), Spielberger Trait-Anxiety scale, CES-D depression scale, and the NCS suicidal behavior scales were administered in a survey to a sample (N¼280) of American college students. Item-total statistics, Cronbach's Alpha, Guttman Split-Half coefficient, factor analyses, correlation analysis and t tests were applied to test the reliability and validity of the English version of the PSS. Univariate and multivariable regression analyses were operated to know how extent the PSS predicts psychopathology such as anxiety, depression and suicidal behaviors. Results: Cronbach's Alpha coefficient of PSS was 0.936. The Split-Half coefficient of PSS was 0.839. The reliability of the PSS was excellent. The factor analysis results demonstrated strong construct validity of each scale. The criterion validity and the discriminant validity were both excellent for the English version of PSS instrument. Conclusions: With the excellent scores on both reliability and validity, the English version of the PSS scales can be an excellent measurement for estimating the psychological strain levels of American college students as well as predicting their psychopathology. The PSS can be applicable for research to evaluate and predict suicidal behaviors and mental disorders.
Evaluation & the Health Professions, 2011
The lack of an available Swedish version of the Patient Health Questionnaire 15-Item Somatic Symptom Severity Scale (PHQ-15) motivated the present psychometric evaluation of such a version as well as providing normative data for the PHQ-15. Data from 3,406 individuals who took part in the Västerbotten Environmental Health Study in Sweden were used. The respondents constitute a random sample, aged 18 to 79 years, stratified for age and sex. They responded to a Swedish translation of the PHQ-15 as well as the Hospital Anxiety and Depression Scale, the Perceived Stress Scale, and the Shirom Melamed Burnout Questionnaire for assessment of convergent validity. The distribution of PHQ-15 scores was positively skewed and mesokurtic in shape, and the internal consistency of the PHQ-15 was satisfactory. Correlation coefficients between PHQ-15 score and the measures of anxiety, depression, stress and mental/physical exhaustion indicate satisfactory validity. Normative data for PHQ-15 scores as well as for categories of somatic symptom severity are provided. The favorable psychometric properties of the Swedish version of the PHQ-15 suggest use of this instrument for quantification of somatization in Swedish and similar populations, and has the advantage of available normative data.
The Depression Anxiety and Stress Scale (DASS): The study of Validity and Reliability
This study investigated the validity and reliability of the Turkish version of the Depression Anxiety Stress Scale (DASS). The sample of the study consisted of 590 university students, 121 English teachers and 136 emotionally disturbed individuals who sought treatment in various clinics and counseling centers. Factor loadings of the scale ranged from .39 to .88. Findings from discriminant validity showed that the DASS discriminates the normal and clinical population. Concurrent validity coefficients were found to be high (.87 and .84, respectively) . Cronbach · internal consistency of the entire scale was .89. Item-total correlations ranged from .51 to .75. Testretest and split-half reliability coefficient scores were .99 and .96 respectively. These results demonstrate that the DASS is a valid and reliable instrument.
BMC Psychiatry, 2021
BackgroundPsychosomatic symptoms, characterized by physical-bodily complaints not fully explained by organic reasons, are highly prevalent. The present study aimed to culturally adapt and evaluate the psychometric properties of Psychosomatic Symptoms Questionnaire 39-item version (PSQ-39) among Iranian general adult population.MethodsThis study included 996 Persian-speaking people, living in Isfahan, Iran. The translation of the PSQ-39 was performed using the forward-backward method. Test-retest reliability was evaluated through Intraclass correlation (ICC) coefficient and internal consistency by using Cronbach’s α. Construct validity was investigated by using both exploratory (EFA) and confirmatory (CFA) factor analysis. Short Form Health Survey (SF-36) was used to assess divergent validity. Known-group validity was also assessed.ResultsThe Persian version of the PSQ-39 showed excellent test-retest reliability in all domains (ICCs: 0.95–0.99). The computed Cronbach’s alpha coeffici...