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Factor Structure

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Jonathan M. Feldman – One of the best experts on this subject based on the ideXlab platform.

  • patient health questionnaire greek language validation and subscale Factor Structure
    Comprehensive Psychiatry, 2012
    Co-Authors: Maria Karekla, Jonathan M. Feldman, Nataliya Pilipenko
    Abstract:

    This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M(Age) = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P < .001) and convergent validity with the following: Alcohol Use Disorders Identification Test, Beck DeprDepression Inventory, Psychiatric Diagnostic Screening Questionnaire (panic disorder, somatization, bulimia, and binge eating), and Anxiety Sensitivity Index (overall mean, r = 0.52; P < .001). The relation between the PHQ subscale diagnoses and functional impairment, as assessed by the 12-item Health Survey 12, was comparable with the original validation results for all subscales except alcohol. The depression, alcohol, and anxiety subscales exhibited single-Factor Structures. Subscales assessing eating disorders, panic disorder, and somatization difficulties exhibited 2-, 3-, and 4-Factor Structures, respectively. Overall, PHQ subscales demonstrated good psychometric properties, with the exception of the subscale examining problematic alcohol use. Overall, PHQ demonstrates good reliability, validity, and appropriate Factor Structure in a Greek-speaking college population. Psychometric research is needed on the Greek PHQ in primary care settings.

  • Patient Health Questionnaire: Greek language validation and subscale Factor Structure
    Comprehensive psychiatry, 2012
    Co-Authors: Maria Karekla, Nataliya Pilipenko, Jonathan M. Feldman
    Abstract:

    Abstract This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M Age = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P r = 0.52; P

Dolores Malaspina – One of the best experts on this subject based on the ideXlab platform.

  • Factor Structure of the Positive and Negative Syndrome Scale (PANSS) Differs by Sex.
    Clinical Schizophrenia & Related Psychoses, 2015
    Co-Authors: Julie Walsh-messinger, Daniel Antonius, Mark Opler, Nicole Aujero, Deborah Goetz, Raymond R Goetz, Dolores Malaspina
    Abstract:

    Abstract Although the Positive and Negative Syndrome Scale (PANSS) is widely used in clinical research, Factor analytic studies of the scale have been inconsistent and questions remain about the underlying Factor Structure of schizophrenia symptoms. The purpose of this study was to examine whether the Factor Structure of the PANSS differs in men and women with schizophrenia. Principal components analysis (PCA) with equamax rotation was used to examine the Factor Structure of the PANSS separately in 124 males and 74 females with schizophrenia-related psychoses. In males, a four-Factor Structure was identified: 1) Negative, 2) Cognitive, 3) Positive, and 4) Hostility. In females, a four-Factor Structure also emerged: 1) Negative, 2) Cognitive, 3) Positive, and 4) Depression. The most notable difference between the male and female PCAs was the presence of a depression Factor in the females and a hostility Factor in males. These results support sex differences in the Factor Structure of schizophrenia symptoms…

  • Factor Structure of the Positive and Negative Syndrome Scale (PANSS) Differs by Sex.
    Clinical schizophrenia & related psychoses, 2015
    Co-Authors: Julie Walsh-messinger, Daniel Antonius, Mark Opler, Nicole Aujero, Deborah Goetz, Raymond R Goetz, Dolores Malaspina
    Abstract:

    Although the Positive and Negative Syndrome Scale (PANSS) is widely used in clinical research, Factor analytic studies of the scale have been inconsistent and questions remain about the underlying Factor Structure of schizophrenia symptoms. The purpose of this study was to examine whether the Factor Structure of the PANSS differs in men and women with schizophrenia. Principal components analysis (PCA) with equamax rotation was used to examine the Factor Structure of the PANSS separately in 124 males and 74 females with schizophrenia-related psychoses. In males, a four-Factor Structure was identified: 1) Negative, 2) Cognitive, 3) Positive, and 4) Hostility. In females, a four-Factor Structure also emerged: 1) Negative, 2) Cognitive, 3) Positive, and 4) Depression. The most notable difference between the male and female PCAs was the presence of a depression Factor in the females and a hostility Factor in males. These results support sex differences in the Factor Structure of schizophrenia symptoms, which has important implications for clinical research.

Maria Karekla – One of the best experts on this subject based on the ideXlab platform.

  • patient health questionnaire greek language validation and subscale Factor Structure
    Comprehensive Psychiatry, 2012
    Co-Authors: Maria Karekla, Jonathan M. Feldman, Nataliya Pilipenko
    Abstract:

    This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M(Age) = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P < .001) and convergent validity with the following: Alcohol Use Disorders Identification Test, Beck Depression Inventory, Psychiatric Diagnostic Screening Questionnaire (panic disorder, somatization, bulimia, and binge eating), and Anxiety Sensitivity Index (overall mean, r = 0.52; P < .001). The relation between the PHQ subscale diagnoses and functional impairment, as assessed by the 12-item Health Survey 12, was comparable with the original validation results for all subscales except alcohol. The depression, alcohol, and anxiety subscales exhibited single-Factor Structures. Subscales assessing eating disorders, panic disorder, and somatization difficulties exhibited 2-, 3-, and 4-Factor Structures, respectively. Overall, PHQ subscales demonstrated good psychometric properties, with the exception of the subscale examining problematic alcohol use. Overall, PHQ demonstrates good reliability, validity, and appropriate Factor Structure in a Greek-speaking college population. Psychometric research is needed on the Greek PHQ in primary care settings.

  • Patient Health Questionnaire: Greek language validation and subscale Factor Structure
    Comprehensive psychiatry, 2012
    Co-Authors: Maria Karekla, Nataliya Pilipenko, Jonathan M. Feldman
    Abstract:

    Abstract This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M Age = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P r = 0.52; P

Julie Walsh-messinger – One of the best experts on this subject based on the ideXlab platform.

  • Factor Structure of the Positive and Negative Syndrome Scale (PANSS) Differs by Sex.
    Clinical Schizophrenia & Related Psychoses, 2015
    Co-Authors: Julie Walsh-messinger, Daniel Antonius, Mark Opler, Nicole Aujero, Deborah Goetz, Raymond R Goetz, Dolores Malaspina
    Abstract:

    Abstract Although the Positive and Negative Syndrome Scale (PANSS) is widely used in clinical research, Factor analytic studies of the scale have been inconsistent and questions remain about the underlying Factor Structure of schizophrenia symptoms. The purpose of this study was to examine whether the Factor Structure of the PANSS differs in men and women with schizophrenia. Principal components analysis (PCA) with equamax rotation was used to examine the Factor Structure of the PANSS separately in 124 males and 74 females with schizophrenia-related psychoses. In males, a four-Factor Structure was identified: 1) Negative, 2) Cognitive, 3) Positive, and 4) Hostility. In females, a four-Factor Structure also emerged: 1) Negative, 2) Cognitive, 3) Positive, and 4) Depression. The most notable difference between the male and female PCAs was the presence of a depression Factor in the females and a hostility Factor in males. These results support sex differences in the Factor Structure of schizophrenia symptoms…

  • Factor Structure of the Positive and Negative Syndrome Scale (PANSS) Differs by Sex.
    Clinical schizophrenia & related psychoses, 2015
    Co-Authors: Julie Walsh-messinger, Daniel Antonius, Mark Opler, Nicole Aujero, Deborah Goetz, Raymond R Goetz, Dolores Malaspina
    Abstract:

    Although the Positive and Negative Syndrome Scale (PANSS) is widely used in clinical research, Factor analytic studies of the scale have been inconsistent and questions remain about the underlying Factor Structure of schizophrenia symptoms. The purpose of this study was to examine whether the Factor Structure of the PANSS differs in men and women with schizophrenia. Principal components analysis (PCA) with equamax rotation was used to examine the Factor Structure of the PANSS separately in 124 males and 74 females with schizophrenia-related psychoses. In males, a four-Factor Structure was identified: 1) Negative, 2) Cognitive, 3) Positive, and 4) Hostility. In females, a four-Factor Structure also emerged: 1) Negative, 2) Cognitive, 3) Positive, and 4) Depression. The most notable difference between the male and female PCAs was the presence of a depression Factor in the females and a hostility Factor in males. These results support sex differences in the Factor Structure of schizophrenia symptoms, which has important implications for clinical research.

Nataliya Pilipenko – One of the best experts on this subject based on the ideXlab platform.

  • patient health questionnaire greek language validation and subscale Factor Structure
    Comprehensive Psychiatry, 2012
    Co-Authors: Maria Karekla, Jonathan M. Feldman, Nataliya Pilipenko
    Abstract:

    This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M(Age) = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P < .001) and convergent validity with the following: Alcohol Use Disorders Identification Test, Beck Depression Inventory, Psychiatric Diagnostic Screening Questionnaire (panic disorder, somatization, bulimia, and binge eating), and Anxiety Sensitivity Index (overall mean, r = 0.52; P < .001). The relation between the PHQ subscale diagnoses and functional impairment, as assessed by the 12-item Health Survey 12, was comparable with the original validation results for all subscales except alcohol. The depression, alcohol, and anxiety subscales exhibited single-Factor Structures. Subscales assessing eating disorders, panic disorder, and somatization difficulties exhibited 2-, 3-, and 4-Factor Structures, respectively. Overall, PHQ subscales demonstrated good psychometric properties, with the exception of the subscale examining problematic alcohol use. Overall, PHQ demonstrates good reliability, validity, and appropriate Factor Structure in a Greek-speaking college population. Psychometric research is needed on the Greek PHQ in primary care settings.

  • Patient Health Questionnaire: Greek language validation and subscale Factor Structure
    Comprehensive psychiatry, 2012
    Co-Authors: Maria Karekla, Nataliya Pilipenko, Jonathan M. Feldman
    Abstract:

    Abstract This study aimed to assess the reliability, validity, and Factor Structure of the Greek translation of the Patient Health Questionnaire (PHQ) in a sample of Cypriot, Greek-speaking university students. This is the first study to examine PHQ psychometric properties in Greek and to investigate the Factor Structure of the PHQ subscales. A total of 520 participants (73.9% women; M Age = 21.57; SD, 4.94) completed the PHQ and assessment tools used for convergent validity analysis. Patient Health Questionnaire was translated and culturally adapted according to international standards. Overall, PHQ subscales in Greek language demonstrated good internal consistency (mean Cronbach α = .75, P r = 0.52; P