International Journal of Methods in Psychiatric Research This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Motivation, treatment engagement and psychosocial outcomes in outpatients with severe mental illness: a test of Self ‐Determination Theory
Abstract Currently, it is unclear whether Self‐Determination Theory (SDT) applies to the mental health care of patients with severe mental illness (SMI). Therefore, the current study tested the process model of SDT in a sample of outpatients with SMI. Participants were 294 adult outpatients with a primary diagnosis of a psychotic disorder or a personality disorder and their clinicians (n = 57). Structural equation modelling was used to test the hypothesized relationships between autonomy support, perceived competence, types of motivation, treatment engagement, psychosocial functioning and quality of life at two time po...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Eline C. Jochems, Hugo J. Duivenvoorden, Arno Dam, Christina M. Feltz ‐Cornelis, Cornelis L. Mulder Tags: ORIGINAL ARTICLE Source Type: research

Evaluation and comparison of tools for diagnosing problematic prescription opioid use among chronic pain patients
In this study we assessed problematic opioid use in a sample of 551 individuals receiving treatment for chronic pain, using three questionnaires: the Alcohol Use Disorder and Associated Disabilities Interview Schedule – Fourth Edition (AUDADIS‐IV), the Current Opioid Misuse Measure (COMM) questionnaire and Portenoy's criteria (PC). These questionnaires yielded discordant positive rates of problematic use: 52.6%, 28.7%, and 17.1%, respectively, which did not change substantially when excluding AUDADIS‐IV criteria of physical symptoms of tolerance and withdrawal. Although these three questionnaires share some statistic...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Merav Kovatch, Daniel Feingold, Odelia Elkana, Shaul Lev ‐Ran Tags: ORIGINAL ARTICLE Source Type: research

Age ‐at‐onset subsets of bipolar I disorders: A critical insight into admixture analyses
This study aimed to examine whether, using admixture analysis of AAO, cross‐sectional designs (which cause right truncation), unreliable diagnosis for individuals younger than 10 years old (which causes left truncation) and the selection criterion used for admixture analysis impact the number of identified subsets. A simulation study was performed. Different criteria – the likelihood ratio test (LRT), the Akaike information criterion (AIC), and the Bayesian information criterion (BIC) – were compared using no, left and/or right truncation simulated data. The error rate of each criterion (percentage of erroneous numb...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Claire Montlahuc, Emmanuel Curis, Sarah Flora Jonas, Frank Bellivier, Sylvie Chevret Tags: ORIGINAL ARTICLE Source Type: research

Psychometric properties of the dimensional anxiety scales for DSM ‐5 in a Brazilian community sample
This study investigated the psychometric properties of the DSM‐5 Dimensional Anxiety Scales in a Brazilian community sample. Dimensional scales for generalized anxiety disorder, social anxiety disorder, panic disorder, agoraphobia, and specific phobia were administered to 930 adults aged 18 to 70, 64.2% female. Psychometric properties investigated were: unidimensionality; measurement invariance; internal consistency; composite reliability; test–retest reliability; convergent and divergent validity; category thresholds and item performance analyses. Analyses revealed unidimensionality for all scales except for specific ...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Diogo A. DeSousa, Andr é L. Moreno, Flávia L. Osório, José Alexandre S. Crippa, Richard LeBeau, Gisele G. Manfro, Giovanni A. Salum, Silvia H. Koller Tags: ORIGINAL ARTICLE Source Type: research

Development of stimulus material for research in alcohol use disorders
We report the development of a large stimulus database consisting of 457 pictures of alcoholic beverages and 398 pictures of neutral objects. These stimuli were rated by 18 inpatients hospitalized due to severe AUD and 18 healthy controls along four dimensions: arousal, valence, alcohol‐relatedness, and craving. Physical parameters of the pictures were assessed. After outlier removal, 831 stimuli that were characterized as either alcohol‐related or neutral were retained in the final stimulus pool. Alcohol‐related pictures (versus neutral pictures) evoked higher arousal, more craving and were judged to have higher alc...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Werner Fey, Franz Moggi, Kristina B. Rohde, Chantal Michel, Andrea Seitz, Maria Stein Tags: ORIGINAL ARTICLE Source Type: research

The Cannabis Abuse Screening Test (CAST) revisited: examining measurement invariance by age
This study compares the psychometric properties of the Cannabis Abuse Screening Test (CAST) across three age groups (18–24, 25–29, 30–40). Data was collected online from an accessible sample of 1316 cannabis users. Factor analysis compared the optimal factor structure and dimensionality diffraction. Multi‐group Model Invariance tests examined measurement invariance across the three age groups. CAST was two‐dimensional in all age groups with one factor measuring cannabis use problems and the other measuring deviation from a common standard of use. The two‐dimensional structure was more pronounced in older age gr...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Sharon R. Sznitman Tags: ORIGINAL ARTICLE Source Type: research

Incremental validity of the PID ‐5 in relation to the five factor model and traditional polythetic personality criteria of the DSM‐5
ConclusionsDimensional measures of personality functioning were consistently associated with baseline symptom functioning, supporting the relevance of personality functioning as it relates to psychiatric symptoms. The PID‐5 uniquely contributed to the prediction of baseline symptom functioning, thus providing incremental validity over gold‐standard personality trait measures. (Source: International Journal of Methods in Psychiatric Research)
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: J. Christopher Fowler, Michelle A. Patriquin, Alok Madan, Jon G. Allen, B. Christopher Frueh, John M. Oldham Tags: Original Article Source Type: research

Development of short ‐form and screening cutoff point of the Smartphone Addiction Inventory (SPAI‐SF)
Abstract Smartphone addiction is considered a form of technological addiction that has attracted increasing attention. The present study developed and validated the short‐form Smartphone Addiction Inventory (SPAI‐SF) and established cutoff point for screening smartphone addiction based on diagnostic criteria established by psychiatric interview. A total of 268 participants completed an online survey that collected demographic data, smartphone use behaviours, and responses to the 26‐item SPAI. Each participant also completed a psychiatric interview. Confirmatory factor analysis (CFA) revealed that the 10‐item SPAI�...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Yu ‐Hsuan Lin, Yuan‐Chien Pan, Sheng‐Hsuan Lin, Sue‐Huei Chen Tags: Original Article Source Type: research

Psychometric properties and a latent class analysis of the 12 ‐item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) in a pooled dataset of community samples
Abstract The 12‐item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is a brief measurement tool used cross‐culturally to capture the multi‐dimensional nature of disablement through six domains, including: understanding and interacting with the world; moving and getting around; self‐care; getting on with people; life activities; and participation in society. Previous psychometric research supports that the WHODAS 2.0 functions as a general factor of disablement. In a pooled dataset from community samples of adults (N = 447) we used confirmatory factor analysis to confirm a one‐factor s...
Source: International Journal of Methods in Psychiatric Research - August 31, 2016 Category: Psychiatry Authors: Melissa A. MacLeod, Paul F. Tremblay, Kathryn Graham, Sharon Bernards, J ürgen Rehm, Samantha Wells Tags: Original Article Source Type: research

Application of randomized response techniques for investigating cannabis use by Spanish university students
International Journal of Methods in Psychiatric Research,Volume 26, Issue 4, December 2017. (Source: International Journal of Methods in Psychiatric Research)
Source: International Journal of Methods in Psychiatric Research - August 2, 2016 Category: Psychiatry Source Type: research

Pathways from maternal depression to young adult offspring depression: an exploratory longitudinal mediation analysis
This study explored mediation of these links via trajectories of child conduct and emotional problems (Strengths and Difficulties Questionnaire) from ages 4–16 years old in data from the Avon Longitudinal Study of Parents and Children cohort (n = 13373). Through gender‐specific structural equation models, a composite measure of exposure to early maternal depression (Edinburgh Postnatal Depression Scale), predicted young adult depression at age 18 (Revised Clinical Interview Schedule – distal outcome). Mediational effects were then estimated by testing which parts of joint piecewise latent trajectory models for ch...
Source: International Journal of Methods in Psychiatric Research - July 28, 2016 Category: Psychiatry Authors: Artemis Koukounari, Argyris Stringaris, Barbara Maughan Tags: Original Article Source Type: research

The DSM ‐5 Dimensional Anxiety Scales in a Dutch non‐clinical sample: psychometric properties including the adult separation anxiety disorder scale
Abstract With DSM‐5, the American Psychiatric Association encourages complementing categorical diagnoses with dimensional severity ratings. We therefore examined the psychometric properties of the DSM‐5 Dimensional Anxiety Scales, a set of brief dimensional scales that are consistent in content and structure and assess DSM‐5‐based core features of anxiety disorders. Participants (285 males, 255 females) completed the DSM‐5 Dimensional Anxiety Scales for social anxiety disorder, generalized anxiety disorder, specific phobia, agoraphobia, and panic disorder that were included in previous studies on the scales, and ...
Source: International Journal of Methods in Psychiatric Research - July 4, 2016 Category: Psychiatry Authors: Eline L. M öller, Susan M. Bögels Tags: Original Article Source Type: research

Estimated probability of becoming a case of drug dependence in relation to duration of drug ‐taking experience: a functional analysis approach
This study's novel estimates for cocaine users one month after first use show 2–4% with cocaine dependence; 12–17% are dependent when use has persisted. Corresponding cannabis estimates are 0–1% after one month, but 10–23% when use persists. Duration or persistence of cannabis smoking beyond an initial interval of a few months of use seems to be a signal of noteworthy risk for, or co‐occurrence of, rapid‐onset cannabis dependence, not too distant from cocaine estimates, when we sort newly incident users into subgroups defined by elapsed time from first to most recent use. Copyright © 2016 John Wiley & Sons...
Source: International Journal of Methods in Psychiatric Research - June 28, 2016 Category: Psychiatry Authors: Olga A. Vsevolozhskaya, James C. Anthony Tags: Original Article Source Type: research

Issue Information
No abstract is available for this article. (Source: International Journal of Methods in Psychiatric Research)
Source: International Journal of Methods in Psychiatric Research - June 5, 2016 Category: Psychiatry Tags: Issue Information Source Type: research

Feasibility and validity of mobile cognitive testing in the investigation of age ‐related cognitive decline
Abstract Mobile cognitive testing may be used to help characterize subtle deficits at the earliest stages of cognitive decline. Despite growing interest in this approach, comprehensive information concerning its feasibility and validity has been lacking in elderly samples. Over a one‐week period, this study applied mobile cognitive tests of semantic memory, episodic memory and executive functioning in a cohort of 114 elderly non‐demented community residents. While the study acceptance rate was moderate (66%), the majority of recruited individuals met minimal compliance thresholds and responded to an average of 82% of t...
Source: International Journal of Methods in Psychiatric Research - May 31, 2016 Category: Psychiatry Authors: Pierre Schweitzer, Mathilde Husky, Mich èle Allard, Hélène Amieva, Karine Pérès, Alexandra Foubert‐Samier, Jean‐François Dartigues, Joel Swendsen Tags: Original Article Source Type: research