Florida Obsessive–Compulsive Inventory: Development, reliability, and validity
Department of Psychiatry, University of Florida, Gainesville, FL 32610, USA.Journal of Clinical Psychology (Impact Factor: 2.12). 09/2007; 63(9):851-9. DOI: 10.1002/jclp.20382
The Florida Obsessive-Compulsive Inventory (FOCI) is a new self-report questionnaire that has separate scales for symptom enumeration (The Checklist) and evaluation of symptom severity (Severity Scale). The present research investigated the FOCI in a sample of 113 patients with obsessive-compulsive disorder (OCD). The results indicated that the FOCI Severity Scale is internally consistent (alpha = .89) and highly correlated with the total score from the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS; Goodman et al., 1989 a). The correlations of the FOCI Severity Scale with measures of depression and global severity of psychopathology were similar to those obtained with the Y-BOCS Total Severity Score. The FOCI Symptom Checklist had adequate reliability (K-R 20 = .83) and moderate correlations (rs < .45) with the FOCI Severity Scale, the Y-BOCS scales, and measures of depression and severity of psychopathology. These findings imply concurrent validity for the FOCI Severity Scale. A strength of the FOCI is that it offers a quick evaluation of both presence and severity of OCD symptoms. An important limitation is that the FOCI does not assess the severity of individual symptoms.
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- "The original FOCI, from which our screen was derived, was designed as a self-report measure (Storch et al., 2007) and is available on many OCD related websites. The FOCI has moderate correlation with Yale Brown Obsessive Compulsive Scale (YBOCS) obsessive, compulsive, and total severity scores (correlations ¼0.71 to 0.87) (Storch et al., 2007). However, to our knowledge, the FOCI has not been validated against the current gold standard, an OCD diagnosis obtained by clinician-administered, structured interview . "
ABSTRACT: Collecting phenotypic data necessary for genetic analyses of neuropsychiatric disorders is time consuming and costly. Development of web-based phenotype assessments would greatly improve the efficiency and cost-effectiveness of genetic research. However, evaluating the reliability of this approach compared to standard, in-depth clinical interviews is essential. The current study replicates and extends a preliminary report on the utility of a web-based screen for Tourette Syndrome (TS) and common comorbid diagnoses (obsessive compulsive disorder (OCD) and attention deficit/hyperactivity disorder (ADHD)). A subset of individuals who completed a web-based phenotyping assessment for a TS genetic study was invited to participate in semi-structured diagnostic clinical interviews. The data from these interviews were used to determine participants׳ diagnostic status for TS, OCD, and ADHD using best estimate procedures, which then served as the gold standard to compare diagnoses assigned using web-based screen data. The results show high rates of agreement for TS. Kappas for OCD and ADHD diagnoses were also high and together demonstrate the utility of this self-report data in comparison previous diagnoses from clinicians and dimensional assessment methods. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.
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- "This was undertaken by screening the behaviour of animals throughout the course of a whole dark cycle and in so doing improve behavioural assessment during and following drug treatment. Since time spent executing OC behaviour during the day is an important diagnostic criterion of OCD according to the Y-BOCS , FOCI , DOCS , and CBOCI , behavioural assessment of the animals throughout the whole dark cycle is not only sensible, but also improves phenotypic selection of the animals and bolsters sensitivity. Deer mice express stereotypic behaviour within a wide margin of variance (viz. "
ABSTRACT: Obsessive-compulsive disorder (OCD) is characterized by recurrent thoughts and repetitive motor actions. Hyposerotonergic signalling in the cortico-striatal circuitry is believed to be central to the pathology of OCD, while many patients only respond to chronic treatment with high dose selective serotonin (5HT) reuptake inhibitors (SSRIs). Confined deer mice spontaneously develop two forms of stereotypy, namely vertical jumping and pattern running. The purpose of this investigation was to reappraise these behaviours and strengthen the validity of deer mouse stereotypy as an animal model of OCD within a framework of three study questions: 1) can the time spent executing stereotypical behaviours be employed as a measure of extent of stereotypy, 2) does deer mouse stereotypy only respond to chronic, but not sub-chronic treatment with a high-dose SSRI, and 3) is deer mouse stereotypy associated with altered cortico-striatal SERT binding?The current study demonstrates that treatment naïve high stereotypical (HS) deer mice spend significantly more time executing stereotypical behaviours while significantly less time is spent indulging in stereotypy following chronic, but not sub-chronic,treatment with escitalopram. Furthermore, HS deer mice present with a significant decrease in striatal SERT density compared to the non-stereotypical (NS) controls. Building on previous validation studies, we conclude that deer mouse stereotypy is a valid naturalistic animal model of OCD with robust face, construct and predictive validity.
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- "Members of the obsessive–compulsive spectrum disorders subworkgroup of the DSM-5 anxiety, obsessive–compulsive spectrum, posttraumatic, and dissociative disorder work group created a template for OCRDs that was adapted from the Florida obsessive compulsive inventory (FOCI; Storch et al., 2007). The FOCI is a 25-item self-report scale for OCD that has demonstrated strong psychometric properties, including strong correlation with the clinician-rated Yale–Brown obsessive compulsive scale (Y–BOCS; Goodman et al., 1989), which is considered the ''gold standard'' in OCD assessment. "
ABSTRACT: There will be several changes to the diagnosis of obsessive–compulsive and related disorders (OCRDs) in DSM-5. Several disorders, including body dysmorphic disorder (BDD), hoarding disorder (HD), trichotillomania (hair-pulling disorder) (TTM), and excoriation (skin-picking) disorder (SPD), will be included alongside obsessive compulsive disorder (OCD) in a distinct diagnostic category of OCRDs. Also, dimensional assessments of psychopathology will be included to supplement traditional categorical diagnoses. The DSM-5 subworkgroup on obsessive–compulsive spectrum disorders developed a set of brief self-rated scales for BDD, HD, TTM, and SPD that are consistent in content and structure, reflect DSM-5 criteria, and can be used by clinicians to help generate a dimensional severity rating for the disorders. In the present paper, we discuss the scales’ creation and examine their psychometric properties in a large non-clinical sample (n=296). The scales each demonstrated a single factor structure, strong internal consistency (α=.80–.89), convergent validity (rs=.74–.92), and significantly higher total scores in individuals who indicated the presence of the respective disorder’s core symptom on a binary diagnostic screener (Cohen’s d=0.57–2.18). The results provide support for further evaluation of these scales in clinical samples and take an important step toward the integration of standardized dimensional measurement into DSM-5.