Mean Inter-item Correlation Research Articles

Reliability and validity of the Chinese version of the Patient Health Questionnaire-9 (C-PHQ-9) in patients with psoriasis: a cross-sectional study

ObjectiveTo evaluate the clinical reliability and validity of the Chinese version of the Patient Health Questionnaire-9 (C-PHQ-9) in patients with psoriasis.DesignCross-sectional study.SettingTertiary care centre.ParticipantsPatients with psoriasis who have not been...

T89. THE RELIABILITY OF THE CORE NEGATIVE SYMPTOMS SCALE OF SCHIZOPHRENIA USING THE STANDARD FOR CLINICIANS’ INTERVIEW IN PSYCHIATRY (SCIP)

BackgroundRecent research on the negative symptoms of schizophrenia has produced reliable and validated scales such as the Scale for the Assessment of Negative Symptoms (SANS), the Schedule for the Deficit Syndrome, the Negative Symptoms Scale of Lewine, and others (1–3). More than 30 negative symptoms have been described, among these, avolition which is considered a core negative symptom (4). The DSM-5 recognizes five main negative symptoms: blunted affect, avolition, alogia, anhedonia and asociality (5). Other researchers consider attention impairment, poor self- care, and psychomotor retardation as negative symptoms (1, 6). There is a need to derive a short list of the core negative symptoms (CNS) of schizophrenia that are reliable and useful in clinical settings and clinical research.MethodsThe Standard for Clinicians’ Interview in Psychiatry (SCIP) is a new valid and reliable diagnostic interview that was tested in an international multisite study in three countries (USA, Canada and Egypt) between 2000 and 2012 (7–10). A total of 700 patients were interviewed at William R. Sharpe Jr. Hospital in Weston, West Virginia (670 patients) and Chestnut Ridge Center in Morgantown, West Virginia (30 patients). Mean patient age was 34, 59% male, 95% White and 34% had less than 12 years of education. The SCIP includes 8 items covering the main negative symptoms of schizophrenia: avolition, blunted affect, alogia, psychomotor retardation, poor self-care, anhedonia, attention impairment, and asociality.ResultsInter-rater reliability Kappa (k) and standard error (SE) were calculated for each of the main negative symptoms: avolition (k=0.74, SE=0.04), blunted affect (k=0.68, SE=0.05), alogia (k=0.62, SE=0.05), psychomotor retardation (k=0.72, SE=0.04), poor self-care (k=0.79, SE=0.06), anhedonia (k=0.87, SE=0.04), attention impairment (k=0.92, SE=0.12), asociality (k=0.74, SE=0.04).Cronbach’s alpha for internal consistency and the mean interitem correlation (MIC) of several models were calculated. Cronbach’s alpha and the MIC of the five-factor negative dimension (blunted affect, avolition, alogia, psychomotor retardation and poor self-care) were: alpha = 0.83, MIC=0.49. The item-rest correlations (IRCs) of each of the 5 negative symptoms were: blunted affect = 0.68, avolition = 0.57, alogia = 0.67, psychomotor retardation = 0.61 and poor self-care = 0.57. The high item-rest correlations of all five negative symptoms may indicate that they represent the Core Negative Symptoms (CNS) of schizophrenia.Adding anhedonia to the five-factor model to create a six-factor model resulted in a low item-rest correlation (IRC) of anhedonia (IRC=0.06) and a lower alpha (0.76).Similarly, adding attention impairment to the five-factor model to create a six-factor model resulted in a low item-rest correlation (IRC) of attention impairment (IRC=0.02) and a lower alpha (0.75). Similarly, adding asociality to the five-factor model to create a six-factor model resulted in a low item-rest correlation (IRC) of asociality (IRC=0.05) and a lower alpha (0.75). Finally, adding anhedonia, attention impairment and asociality to the five-factor model to create an eight-factor model resulted in low IRCs for anhedonia, attention impairment and asociality (IRCs are 0.12, 0.06, 0.10 respectively) and a lower alpha (0.67).DiscussionThe Core Negative Symptoms (CNS) Scale includes five negative items. Three items (avolition, psychomotor retardation and poor self-care) have good agreement (kappa >0.7) and two items (alogia and blunted affect) have fair agreement (kappa ranges from 0.5 to 0.7). Cronbach’s alpha was also high (0.83). The CNS scale can therefore be considered reliable at the dimensional level.

Physicians' Attitudes Toward Adolescent Confidentiality Services: Scale Development and Validation.

IntroductionConfidentiality is one of the oldest ethical principles in healthcare. However, confidentiality in adolescent healthcare is not a universally-accepted doctrine among scholars. The ethical acceptability of confidential services in adolescents’ healthcare is based on perceptions of adolescent maturity and an appreciation of its importance to adolescents’ access and utilization of healthcare services. Despite legal policies that promote adolescents’ rights, physicians’ attitudes toward adolescent confidentiality can be a determining factor in their ultimate decision to protect adolescents’ confidentiality.MethodA new Attitude towards Adolescent Confidentiality Scale was developed based on the results of a qualitative interview study. This new instrument was administered to a sample of 152 physicians working at school pediatric and gynecology departments in 13 primary healthcare institutions in Belgrade. Principal component analysis was applied to determine the main components of the scale. Reliability was assessed by calculating Cronbach alpha and mean inter-item correlations.ResultsPsychometric analysis of the final 19-item version of the scale showed a high level of reliability (Cronbach alpha of 0.83). Principal component analysis showed four components, which present subscales of the instrument: Confidentiality in clinical situation, Iimportance of confidentiality, Adolescent maturity, and Communication with parents.ConclusionsThe instrument showed satisfactory levels of reliability and validity. The results of the scale dissemination may be a valuable tool for needs assessment for future educational interventions and training programs that will raise physicians’ awareness of the importance of adolescent confidentiality.

Hand hygiene beliefs and behaviours about alcohol-based hand rub use: Questionnaire development, piloting and validation.

Behavioural theories are crucial to the development and success of effective hand hygiene interventions. Research demonstrates that hand hygiene behaviours can also be influenced by religious and cultural beliefs. In this paper we detail the processes undertaken to develop a valid and reliable questionnaire to examine healthcare workers' beliefs and behaviours related to the use of alcoholbased hand rub (ABHR), with particular emphasis on associated religious and cultural factors. Using the Theory of Planned Behaviour, an existing questionnaire was modified and pilot-tested on 35 staff in the Quality Department. Cronbach's alpha values and mean inter-item correlations of the scale items were the main outcome measures. A Pearson correlation was conducted to assess for social desirability response bias. The questionnaire demonstrated high content and face validity and satisfactory internal consistency in most scales, except for the religious beliefs, cultural beliefs and perceived behavioural control scales, where the inter-item correlations were 0.10, 0.13, and 0.14, respectively. There was a significant correlation between scores on the social desirability scale and the attitude scale. Partial correlation should be used to control the effect of social desirability responding when analysing data from the attitudes scale. A validation process allowed the introduction and subsequent modification of religious and cultural belief scales to an existing questionnaire examining behavioural and attitudinal influences on hand hygiene using ABHR. Such processes should be considered for questionnaire development and modification when considering religious and cultural factors as drivers of behaviour.

Reliability and validity of the Children's Depression Inventory-Japanese version.

Depression has major negative consequences for individuals and society, and psychological assessment tools for early disease detection are needed. The aim of this study was to investigate the reliability and validity of an updated Japanese version of the Children's Depression Inventory (CDI-J) and set a cut-off score for the detection of depression. The participants consisted of 465 children and adolescents aged 7-17years. The control (CON) groups consisted of students recruited from elementary and junior-high school (CONEJ) and children recruited from among hospital staff members (CONRE), while the outpatient clinical (OPC) groups consisted of pediatric psychosomatic outpatients (OPCPD) and adolescent psychiatric outpatients (OPCPS). The CON and OPC CDI-J scores underwent factor analysis using varimax rotation, followed by measurement invariance analysis. The Youth Self-Report (YSR) was administered to assess concurrent validity. The Mini-International Neuropsychiatric Interview was administered to the OPC group to diagnose current depressive symptoms. Receiver operating characteristics (ROC) analysis was conducted to evaluate case-finding performance and to set cut-off points for the detection of depression. The CDI-J was reliable in terms of internal consistency (Cronbach α = 0.86; mean inter-item correlation, 0.16). Re-test reliability was substantial (mean interval 18days: γ = 0.59, P < 0.05). The four-factor solution exhibited adequate internal consistency (range, 0.52-0.73) and correspondence (Pearson correlation of 0.65 with the YSR) for both the CON and OPC groups. On ROC analysis the optimal cut-off score was 23/24. The CDI-J can be used as a reliable and well-validated instrument alongside standard diagnostic procedures.

Perinatal incontinence: Psychometric evaluation of the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form and Wexner Scale.

The International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) and the Wexner Scale have been included in the International Consortium for Health Outcomes Measurement core outcome set during pregnancy and childbirth, to measure urinary and anal incontinence. The reliability and validity of these instruments have not been fully evaluated in maternity populations. The aim of this study was to conduct a psychometric evaluation of the ICIQ-UI SF and Wexner Scale. Consecutive pregnant women (n = 309) who booked for care at one Australian birth facility between August 2017 and April 2018 completed the online surveys. Women who screened positive for urinary and/or anal incontinence were administered the ICIQ-UI SF and/or Wexner Scale during pregnancy ( <27 and 36-weeks) and postpartum (6 and 26-weeks). Scale internal consistency, construct validity, and responsiveness were evaluated. In women with urinary incontinence, the ICIQ-UI SF demonstrated good internal consistency during pregnancy (baseline and 36 weeks) and 6-weeks postpartum (mean inter-item correlation: 0.47, 0.39, and 0.46, respectively), recorded significant change across three time-points, and was sensitive to group differences in age and obesity during pregnancy. Wexner Scale was unsuitable for psychometric analysis due to insufficient numbers of women with anal incontinence. The ICIQ-UI SF is a valid and reliable instrument to measure urinary incontinence during pregnancy and postpartum. The findings support the inclusion of the ICIQ-UI SF in the International Consortium for Health Outcomes Measurement core outcome set for use during the perinatal period. Psychometric analysis of the Wexner Scale in larger maternity populations is recommended.

Generalised anxiety disorder in adolescents in Ghana: Examination of the psychometric properties of the Generalised Anxiety Disorder-7 scale

The Generalised Anxiety Disorder-7 (GAD-7) is a self-report scale used to assess general anxiety symptoms. Although the GAD-7 has been found to be a valid scale among adults, studies examining its psychometric properties among adolescents in high-income countries are notably limited and particularly non-existent in low- and middle-income countries. The current study addresses this lacuna by investigating the factorial validity, construct validity, internal consistency and discriminant accuracy of the GAD-7. Data were collected from 553 adolescents (boys = 231; average age = 16.85) recruited from a senior high school in Ghana, a sub-Saharan African country, using cross-sectional self-report methodology. The result supports a unidimensional structure of the GAD-7 that was invariant across gender. The GAD-7 correlates significantly with measures of anxiety, suicidal tendencies and mental well-being, suggesting construct validity. The internal consistency of the GAD-7, based on the mean inter-item correlation value of 0.24 and Cronbach’s a = 0.69, is adequate. The GAD-7 similarly discriminated between individuals at high risk of suicidal tendencies and depression from those with low or no risk, with area under curve values of 0.71 and 0.70, respectively. The GAD-7 is a reliable and valid measure to screen for generalised anxiety disorder among adolescents in Ghana.

Limited utility of detailed e-cigarette use measures: An analysis of NESARC-III

IntroductionThe heterogeneity of e-cigarette products and e-liquids pose challenges to surveillance of e-cigarette exposure. The goal of this study was to evaluate the internal consistency of e-cigarette use frequency, quantity, and duration measures in a national population-based survey. MethodsData were drawn from the 2012–2013 for the National Epidemiologic Survey on Alcohol and Related Conditions-III (n = 36,309; NESARC-III). Adults who used e-cigarettes/e-liquid during the past year (≤18 years old; n = 1,229) were asked about their age of first use, recency of use, quantity (i.e., cartridges, drops), nicotine concentration, and duration (hours). Several internal consistency parameters were compared for e-cigarette measures in past-year (n = 750) and past 30-day e-cigarette users (n = 472) overall, and by frequency of use (i.e., infrequent [≤3 days/month], non-daily [1–6 days/week], daily). ResultsThere were no significant differences in quantity, nicotine concentration, or duration by frequency of use in past 30-day e-cigarette users. One-third of past 30-day and almost half of past-year users did not know the nicotine concentration of their cartridge or e-liquid. Correlations between all e-cigarette use measures were low, with the highest correlations seen between e-liquid quantity and cartridge quantity in all past 30-day users (r = 0.28) and those reporting any e-liquid use (r = 0.40). Cronbach's alpha and mean interitem correlations were low across all user groups. ConclusionsLow to moderate correlation across e-cigarette measures in e-cigarette users implies low internal consistency of these measures in a population survey. Findings suggest measures such as quantity and nicotine concentration might more appropriate in samples of recent experienced e-cigarette users than in general population samples.

Initial psychometric testing and validation of the French version of the Canine Brief Pain Inventory

ObjectiveThe Canine Brief Pain Inventory (CBPI) is an owner-completed questionnaire quantifying the severity and impact of chronic pain in dogs. The English version of the CBPI was adapted into French and the objective of this study was to validate this French version of the CBPI. Study designProspective clinical study. AnimalsA group of 32 dogs with a medical history, clinical signs and radiographic evidence consistent with osteoarthritis. MethodsOwners of dogs with osteoarthritis who were native French speakers completed a single administration of the translated questionnaire. The psychometric properties were evaluated including construct validity (by factor analysis), reliability (internal consistency) and convergent validity. ResultsFactor analysis on the responses from this cohort confirmed a two-factor questionnaire: the Pain Severity (PS) factor and the Pain Interference (PI) factor. The mean inter-item correlation for PS and PI questions was 0.74 and 0.53, respectively. These findings reveal strong internal consistency, suggesting that the questions contained within each factor measure the same concept and can be pooled to generate the PS score (PSS) and PI score (PIS). Cronbach’s α was 0.91 and 0.87 for PSS and PIS, respectively. There was strong negative correlation between PSS and PIS with the overall quality of life score (r = –0.62 and r = –0.79, respectively, with p < 0.001 for both), consistent with the hypothesis that increases in PS and PS with function are highly correlated with a corresponding decrease in overall quality of life. Conclusions and clinical relevanceInitial validation of this French version of the CBPI represents an important step in the expanded use of validated owner-completed outcome assessment instruments for use by researchers and clinicians who seek reliable methods to quantify the severity and impact of chronic pain in dogs with osteoarthritis.

Validation of Polish version of the Basel Extent of Rationing of Nursing Care revised questionnaire.

Development of simple, valid and reliable instruments to determine nursing care rationing is a subject of ongoing research. One such instrument, which is gaining popularity worldwide and has significant research applicability, is the Basel Extent of Rationing of Nursing Care (BERNCA) and its revised version, the BERNCA-R. The aim of this study was to translate and adapt the BERNCA-R into a Polish-language version and to assess its reliability and validity in evaluating the level of implicit rationing of nursing care in Poland. Standard methodological requirements were followed during translation and cultural adaptation of the English version of the BERNCA-R questionnaire into Polish. The cross-sectional validation study was conducted between May and September 2017, which included 175 nurses undergoing specialisation and qualification courses at the European Postgraduate Education Centre in Wrocław, Poland. Cronbach’s alpha and inter-item correlations were used to analyse the internal consistency of the Polish BERNCA-R questionnaire. The mean total BERNCA-R score was 1.9 points (SD = 0.74) on a scale of 0–4. Cronbach’s alpha for the unidimensional scale was 0.96. The mean inter-item correlation was 0.4 (range 0.1–0.84), which indicates high internal consistency. A single-factor solution demonstrated stable loadings above 0.5 for almost all items of the Polish BERNCA-R questionnaire. The study using the Polish BERNCA-R questionnaire demonstrated that the instrument is valid and reliable for use in investigating care rationing in groups of Polish nurses.

Validation of a novel integral disease index for evaluating the grade of activity in Mexican patients with ulcerative colitis: A prospective cohort study

Introduction and aimUlcerative colitis is a chronic condition characterized by inflammation affecting the colon. To objectively and integrally measure disease activity in patients with ulcerative colitis and thus optimize pharmacologic treatment, a novel integral disease index was created that includes the clinical, biochemical, endoscopic, and histologic characteristics necessary for achieving that task. The aim of the present study was to validate the novel integral disease index in patients with ulcerative colitis. Materials and methodsA cohort study on a total of 222 patients with histologic confirmations of ulcerative colitis diagnosis was conducted. The variables included in the disease index were: number of bowel movements per day; values for hemoglobin, high-sensitivity C-reactive protein, and serum albumin; and endoscopic and histologic findings measured through the subscales of the Mayo and Riley scores, respectively. The data analysis was performed utilizing the STATA SE 11.1 statistics program. ResultsThe correlation of the novel disease index was very good (r=0.817, p <.001 with the Truelove and Witts criteria and r=0.957, p <.0001 with the Mayo score, respectively). Good internal consistency was found with a Cronbach's alpha coefficient of 0.78 and an acceptable mean inter-item correlation (r=0.47, p <.05). The total efficacy of the novel index was 87.2% correctly classified patients, with an AUC according to the three scenarios described of 0.93, 0.92, and 0.96, respectively. ConclusionsThe novel integral disease index (Yamamoto-Furusho Index) provides an integral view of disease activity in patients with ulcerative colitis and is useful for optimizing pharmacologic treatment.

Evaluating reflective practice groups in a mental health context: Swedish translation and psychometric evaluation of the clinical supervision evaluation questionnaire

BackgroundImplementation of reflective practice groups in psychiatric and mental health contexts might improve the quality of care through promoting self-awareness, clinical insight, and facilitating stress management and team building. There is a need for valid and reliable instruments to test the outcomes of reflective practice groups in the mental health context. This study aimed to test the validity and reliability of the Swedish version of the Clinical Supervision Evaluation Questionnaire.MethodsThe instrument was translated from English to Swedish using a translation and back-translation procedure. Data for the calculation of content validity was collected from an expert group. Data for the reliability analysis was collected from rehabilitation assistants and ward managers participating in reflective practice groups (n = 20). Content validity was measured by computing a content validity index. Construct validity was assessed by calculating the corrected item-total correlation statistics. Reliability was evaluated by analysing the Cronbach’s alpha coefficient, the intraclass correlation coefficient and inter-item correlations.ResultsThe content validity index for the scale as a whole was 0.94. Item-total correlations ranged between 0.23 and 0.81, and deletion of an item did not notably improve Cronbach’s alpha. Cronbach’s alpha for the scale was 0.89. The intraclass correlation coefficient for single measures was 0.35. The mean inter-item correlation was .37.ConclusionThe Swedish version of the Supervision Evaluation Questionnaire has a degree of reliability and validity that is comparable to the original version in English, indicating that it can be used as an assessment of reflective practice groups in the mental health context.

Brief adult respiratory system health status scale-community version (BARSHSS-CV): developing and evaluating the reliability and validity

BackgroundThe evaluation of respiratory system health status in hospitalized patients is usually based on many laboratory examinations and imaging examinations. Medical examinations require a lot of manpower, material resources, financial resources, and may cause a certain degree of mechanical damage and radiation damage. It is not easily used widely and economically to assess the respiratory health status of community adults. Therefore, researchers developed a brief adult respiratory system health status scale-community version (BARSHSS-CV) and tested its reliability and validity.MethodsUsing clinical characteristics and pathogenic factors of respiratory system diseases as a theoretical basis and through reference to relevant literature, researchers developed an initial scale. A randomized cluster sampling strategy was used to recruit adults in the communities of Baoding City, Shijiazhuang City, Cangzhou city and Chifeng City in China. Researchers randomly selected 1 district from each city. Subsequently, 4 communities were respectively randomly selected from 4 districts. Then, researchers conducted the questionnaire survey in 4 communities. Finally, researchers investigated 615 community adults. 584 valid questionnaires were recovered. By applying exploratory factor analysis, confirmatory factor analysis, content validity index, Cronbach’s α coefficient, mean inter-item correlation coefficient and test-retest reliability, researchers tested the reliability and validity of scale and created the final BARSHSS-CV.ResultsBARSHSS-CV Cronbach’s α=0.951, content validity = 0.933, test-retest reliability = 0.963 and factor cumulative contribution rate = 67.168% by exploratory factor analysis. By confirmatory factor analysis, Chi square value (χ2) was 442.117, degrees of freedom (df) was 161, Chi square value/degrees of freedom (χ2 /df) was 2.746, root-mean-square error of approximation (RMSEA) was 0.065, goodness of fit index (GFI) was 0.902, incremental fit index (IFI) was 0.955, comparative fit index (CFI) was 0.955, normed fit index (NFI) was 0.931, Tueker-Lewis index (TLI) was 0.947. BARSHSS-CV consisted of 20 items and 3 dimensions.ConclusionsBARSHSS-CV with good test-retest reliability and content/construct validity is a brief and economical tool for assessing the state of respiratory system amongst adult communities. BARSHSS-CV may help medical staff in community primary medical institutions quickly, conveniently and economically assess the status of respiratory system and the main problems of respiratory system in community adults.

Cross-cultural validation of the Brazilian version of the spiritual care competence scale.

This study describes the cross-cultural validation and psychometric evaluation of the Spiritual Care Competence Scale - Brazilian Portuguese version. This reliable and valid instrument is recommended in the literature to measure the outcomes of the education process in the development of spiritual care competences. This is a cross-sectional validation study following the stages proposed by Beaton et al.: translation into Portuguese, back translation into English, expert committee review for semantic equivalence, assessment of the clarity of the pre-final version, and evaluation of the psychometric properties of the final version in Portuguese. Health professionals working at a public hospital in South Brazil participated in the different stages of this study.ResultRegarding internal consistency, total Cronbach's alpha was 0.92 and the mean inter-item correlation was 0.29. The test-retest procedure showed no statistically significant differences in the six subscales. The intraclass correlation coefficient ranged from 0.67 to 0.84, demonstrating the stability of the scale.Significance of resultsThe results support the psychometric quality of the scale and indicate that the adapted instrument is a valid and reliable scale with good internal consistency for measuring spiritual care competencies of health professionals in Brazilian healthcare settings.

COMPARISON OF THREE SHORT SIX-FACTOR PERSONALITY INSTRUMENTS

The aim of this research was to validate Serbian adaptations of three short six-factor model measures: 24 Questionnaire Big Six (24QB6), Mini-IPIP6, and Brief HEXACO Inventory (BHI). Besides these measures, HEXACO-100 was applied on a sample of 310 participants (41% of male) from the general population. The results of confirmatory factor analysis showed marginal fit indices for 24QB6, and satisfactory fit indices for Mini-IPIP6, but not for BHI. BHI also had the smallest Cronbach’s alphas for the scales, but the highest correlations with matching HEXACO-100 scales, confirming its convergent and discriminant validity. Regarding 24QB6, it was noticeable that all scales were valid, except for Honesty/Propriety, which showed substantial relations with both Honesty-Humility and Conscientiousness. Scales from Mini-IPIP6 had the highest alphas, but also the highest mean inter-item correlation, indicating that they measured a narrower scope of the traits. Also, validity of the Agreeableness scale was limited. Taken together, all the measures had advantages and disadvantages, and authors should choose a short measure in line with the importance of either validity or reliability.

Psychometric Properties of the Chinese Version of the Brief Borderline Symptom List in Undergraduate Students and Clinical Patients.

The brief version of the Borderline Symptom List (BSL-23) is a self-rated scale developed from the initial 95-item version of Borderline Symptom List (BSL-95). The current study aimed to evaluate the psychometric properties of the Chinese version of the BSL-23. A total of 570 undergraduate students and 323 clinical patients completed the BSL-23, the borderline subscale of the Personality Diagnostic Questionnaire (PDQ-4+), the Center for Epidemiologic Studies Depression Scale (CES-D), the Barratt Impulsiveness Scale, 11th version (BIS-11), the Childhood Trauma Questionnaire (CTQ) and the Attachment Style Questionnaire (ASQ). A Confirmatory Factor Analysis (CFA) was conducted to test the one-factor structure of the BSL-23. Cronbach’s alpha, Omega coefficient, Split-Half coefficient, Mean Inter-Item Correlation (MIC) and test-retest reliability were also measured. The correlations between the BSL-23 and other psychological variables were used to assess criterion-related validity and convergent validity. Participants who scored ≥ 5 on the borderline subscale of the PDQ-4+ were placed into the borderline personality disorder (BPD) screening-positive group, while the others were placed into the screening-negative group. Independent sample t-tests were performed to examine the differences in BSL-23 scores between the BPD screening-positive group and the BPD screening-negative group. The CFA results supported the one-factor structure of the BSL-23 in both samples. The internal consistency was high both in the undergraduate sample (Cronbach’s α = 0.93, Omega = 0.95, Split-Half coefficient = 0.89, MIC = 0.38) and the clinical sample (Cronbach’s α = 0.97, Omega = 0.97, Split-Half coefficient = 0.96, MIC = 0.56). The test-retest reliability within 2 weeks was 0.62. The BSL-23 displayed moderate to high correlations with the PDQ-4+-Borderline subscale, the CES-D, the BIS-11, the CTQ and the ASQ (r = 0.35 – 0.70). In addition, the BSL-23 discriminated between the BPD screening-positive and the BPD screening-negative participants, and also between the patient sample and undergraduate sample. In conclusion, the Chinese version of the BSL-23 has satisfactory psychometric properties to assess BPD symptoms.

The relationship between process use and stage of change for sugary drinks.

Decreasing sugar-sweetened beverage consumption may reduce obesity and obesity-related diseases. To better understand what processes could facilitate a reduction in sugary beverage intake, we examined the relationship between stage-of-change and use of 10 processes of change. Secondarily, reliability of the measure was assessed. A cross-sectional study was conducted, using a newly developed stage-of-change and process of change questionnaire. Participants (n = 105; male, n = 28) were aged between 18 and 60 years. A one-way analysis of variance, with Tukey's and Benjamini-Hochberg post hoc tests, was used to compare process use by stages. Paired t-tests were used to compare total cognitive and total behavioural process use within each stage. Cronbach's α coefficient and mean inter-item correlation was used to assess internal consistency. Reliability of repeated items was examined using kappa. Cognitive and behavioural processes were used more in the contemplation/preparation and maintenance stages than in precontemplation (all P < 0.05). Compared to precontemplation, process use was significantly higher in contemplation/preparation for five individual processes, action for four processes and maintenance for five processes. The use of dramatic relief and self liberation was lower in maintenance than contemplation/preparation. Across the stages, the use of eight of the 10 processes differed. The use of consciousness raising, self re-evaluation and self liberation differed between stages more frequently than other processes. The use of many processes differed by stage and could be incorporated into programmes aiming to assist adults in reducing their consumption of sugary drinks.

An Arabic Version of the Geriatric Depression Scale (30 Items): Psychometric Properties and Some Findings in a Lebanese Elderly Sample

Background/Aim: Although the rates of depression and anxiety disorders have been shown to be higher in older people, especially those living in institutional settings, most of this population remains undiagnosed and untreated. The objective is to translate the full-scale Geriatric Depression Scale (30 items, GDS) into Arabic for use in elderly patients in Lebanon, to check its validity and reproducibility in comparison to the original version of the questionnaire, and assess the risk factors associated with depression in the Lebanese geriatric population. Methods: This case-control study was conducted between June and August 2016 and included 500 patients aged more than 60 years (250 living inside and 250 outside a nursing home). Results: Strongly positive correlations (p < 0.001 for all items of the scale) were found between each item of the scale and the total scale. The mean inter-item correlation for our scale was 0.51, higher than that of the original scale (0.36), with an excellent internal consistency (Cronbach α = 0.901). Living in a nursing home, stress, anxiety, being married, age, and the primary level of education would significantly increase depression (β = 2.211, β = 0.223, β = 0.041, β = 0.902, β = 0.118, and β = 3.533, respectively). A normal nutritional status and a university level of education would significantly decrease depression (β = –0.732; β = –1.961). Conclusion: The Arabic version of the GDS can be used to estimate the severity of depression in the Lebanese elderly population. Periodic screening for anxiety, nutritional status, and stress is also recommended among geriatric people living in Lebanon.

Validity and reliability of a questionnaire developed to explore nutrition determinants among construction workers in Gauteng, South Africa

Objectives: The nutrition of construction workers is related to their health and safety (H&S) at work. Research on the factors influencing construction workers’ food choices and overall nutrition is limited, in South Africa and indeed Africa as a whole. The present paper aims to develop and validate a questionnaire on factors influencing construction workers’ food choices.Design: The study adopted a quantitative approach; 42 items, divided into six constructs, were used to develop a field-survey questionnaire after a detailed literature review.Setting: The study was conducted on eight construction sites (consisting of five building construction and three road construction sites), chosen through heterogeneity sampling, in Midrand, Centurion, Johannesburg and Samrand.Subjects: Participants included construction workers actively involved in site activities.Outcome measures: Principal components analysis (PCA) was conducted to examine the structures and validity of the constructs. Cronbach’s alpha test and mean inter-item correlations were used to examine internal consistency reliability.Results: After repeated factor analysis, the questionnaire on food-choice factors revealed seven different factors: food context, biological factors, nutritional knowledge, personal ideas and systems, economic factors, resources and cultural background. These factors explained 60.09% variance. Cronbach’s alpha coefficients ranged from 0.62 to 0.85, signifying good internal consistency reliability.Conclusion: The determinants of construction workers’ food choices are vital considerations when designing and implementing nutrition interventions in the South African construction industry. Future research can adopt the instrument and developed model when conducting psychometric evaluations of construction workers’ food-choice determinants.

Psychometric properties of the Negative Stereotypes Towards Aging Questionnaire (CENVE) among a sample of Portuguese adults

Stereotyped beliefs about old age and the aging process have proven to strongly promote negative behaviors toward the elderly, with unfavorable influences on their mental and physical health. Therefore, it is important to assess negative aging attitudes with brief but reliable and validated measurement instruments. The psychometric properties of the Portuguese version of the Negative Stereotypes Towards Aging Questionnaire (15 items self-reported) are explored and described in a sample of 302 participants (213 females and 89 males) between the ages of 18 and 59 years old. Confirmatory Factor Analysis shows a one-factor structure, similar to the Spanish version. The internal reliability and mean inter-item correlation showed satisfactory psychometric proprieties. Factorial ANOVA reveals that differences in agism beliefs are mainly related to educational level, with lower negative stereotypes in more educated adults. No differences were found concerning gender. This instrument may be a useful tool to assess negative stereotypes toward old age and the aging process.