Psychometric properties of the General Functioning Questionnaire (GFQ-58) used for screening for symptoms of psychopathology and overall level of functioning
OBJECTIVES: Measuring severity of psychopathological symptoms using self-assessment questionnaires is important for clinical and scientific research. However, there is no widely-available Polish tool which measures both overall functioning and severity of a broad spectrum of psychopathological symptoms. This paper describesthe designing of such a tool -the General Functioning Questionnaire (GFQ-58).
METHODS: Three studies were conducted to verify the validity and reliability of the GFQ-58: (1)a study comparing 30 individuals diagnosed with schizophrenia and 30 with no psychiatric diagnosis; (2) a correlational study on 602 individuals exploring relationships between the GFQ-58 and tendency for rumination and quality of life; and (3) a study on 37 patients from a ward which treats neurotic and personality disorders, exploring the relationships between the GFQ-58 and tools for measuring severity of psychopathological symptoms, overall functioning and neurotic personality.
RESULTS: The first study revealed large differences between individuals suffering from schizophrenia and healthy individuals in the overall score of the questionnaire (p < 0.001; d = 1.30) and some of its subscales. The second study showed strong relations between the GFQ-58 and both severity of rumination (p < 0.001; . = 0.64) and quality of life (p < 0.001; .=-0.81). The third study identified relationships between the GFQ-58 and tools measuring various psychopathological symptoms, overall functioning and neurotic personality. These relationships were moderate or strong (all p . 0.001; r =0.43-0.86). Reliability of the overall score was satisfactory in all studies (Cronbach's . = 0.89-0.92).
CONCLUSIONS: The GFQ-58 has satisfactory validity and reliability. It can be used in both scientific and clinical research as a screening tool for measuring overall functioning and severity of psychopathological symptoms.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:54 |
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| Enthalten in: |
Psychiatria polska - 54(2020), 1 vom: 29. Feb., Seite 83-100 |
| Sprache: |
Englisch |
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| Weiterer Titel: |
Właściwości psychometryczne Kwestionariusza Ogólnej Oceny Funkcjonowania (KOOF-58) służącego do przesiewowego pomiaru nasilenia objawów psychopatologicznych i poziomu ogólnego funkcjonowania |
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| Beteiligte Personen: |
Styła, Rafał [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Completed 03.03.2021 Date Revised 03.03.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.12740/PP/99564 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM310295386 |
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| 245 | 1 | 0 | |a Psychometric properties of the General Functioning Questionnaire (GFQ-58) used for screening for symptoms of psychopathology and overall level of functioning |
| 246 | 3 | 3 | |a Właściwości psychometryczne Kwestionariusza Ogólnej Oceny Funkcjonowania (KOOF-58) służącego do przesiewowego pomiaru nasilenia objawów psychopatologicznych i poziomu ogólnego funkcjonowania |
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| 500 | |a Date Completed 03.03.2021 | ||
| 500 | |a Date Revised 03.03.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a OBJECTIVES: Measuring severity of psychopathological symptoms using self-assessment questionnaires is important for clinical and scientific research. However, there is no widely-available Polish tool which measures both overall functioning and severity of a broad spectrum of psychopathological symptoms. This paper describesthe designing of such a tool -the General Functioning Questionnaire (GFQ-58) | ||
| 520 | |a METHODS: Three studies were conducted to verify the validity and reliability of the GFQ-58: (1)a study comparing 30 individuals diagnosed with schizophrenia and 30 with no psychiatric diagnosis; (2) a correlational study on 602 individuals exploring relationships between the GFQ-58 and tendency for rumination and quality of life; and (3) a study on 37 patients from a ward which treats neurotic and personality disorders, exploring the relationships between the GFQ-58 and tools for measuring severity of psychopathological symptoms, overall functioning and neurotic personality | ||
| 520 | |a RESULTS: The first study revealed large differences between individuals suffering from schizophrenia and healthy individuals in the overall score of the questionnaire (p < 0.001; d = 1.30) and some of its subscales. The second study showed strong relations between the GFQ-58 and both severity of rumination (p < 0.001; . = 0.64) and quality of life (p < 0.001; .=-0.81). The third study identified relationships between the GFQ-58 and tools measuring various psychopathological symptoms, overall functioning and neurotic personality. These relationships were moderate or strong (all p . 0.001; r =0.43-0.86). Reliability of the overall score was satisfactory in all studies (Cronbach's . = 0.89-0.92) | ||
| 520 | |a CONCLUSIONS: The GFQ-58 has satisfactory validity and reliability. It can be used in both scientific and clinical research as a screening tool for measuring overall functioning and severity of psychopathological symptoms | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Validation Study | |
| 650 | 4 | |a psychopathology | |
| 650 | 4 | |a self report | |
| 650 | 4 | |a symptom checklist | |
| 700 | 1 | |a Kowalski, Joachim |e verfasserin |4 aut | |
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