scholarly journals E-Cigarette Demand: Impact of Commodity Definitions and Test–Retest Reliability

2020 ◽  
Author(s):  
Justin C Strickland ◽  
Olga A Vsevolozhskaya ◽  
William W Stoops
Keyword(s):  
Effect Size ◽  
Discriminant Validity ◽  
Good Test ◽  
Retest Reliability ◽  
Cigarette Demand ◽  
Convergent And Discriminant Validity ◽  
Human Participants ◽  
Puff Intensity ◽  
Test Retest Reliability

Abstract Introduction Behavioral economic demand provides a multidimensional understanding of reinforcement. Commodity purchase tasks are an efficient method for measuring demand in human participants. One challenge in translating these procedures to electronic nicotine delivery systems (ENDS or e-cigarettes) is defining commodity units given the lack of standardization in the e-cigarette marketplace. Aims and Methods The purpose of this study was to directly compare methods of operationalizinge-cigarette purchases, puffs, cartridges, and mLs liquid, using a within-subject design. Participants (N = 132) reporting past week e-cigarette use were recruited using crowdsourcing. Purchase tasks were completed operationalizing e-cigarette units as puffs or cartridges at baseline and puffs or mLs liquid at a 3-month follow-up. Results Bivariate associations supported convergent and discriminant validity with the largest effect size correlations for intensity and elasticity observed for the puff version. Interaction models suggested that product preferences moderated the relationship between time-to-first use and cartridge demand with larger effect size correlations among persons reporting a preference for JUULs, but weaker relationships among persons reporting other device preferences. Puff intensity (rxx = .61) and elasticity (rxx = .62) showed good test–retest reliability for participants reporting stable consumption, but poor test–retest reliability for individuals with changed consumption levels (intensity rxx = −.08; elasticity rxx = −.10). Conclusions This study highlights the relevance of commodity definitions in the e-cigarette purchase task. Puffs as an experimental commodity may provide flexibility for studying e-cigarette demand in heterogenous or unknown populations, whereas more tailored or personalized approaches like cartridge or mL-based tasks will likely be helpful when studying known subgroups. Implications The commodity purchase task procedure is widely used for understanding cigarette and e-cigarette demand in nicotine dependence research. This study evaluates the importance of operational definitions of e-cigarette commodities in the purchase task (ie, puffs, cartridges, or mLs liquid). Puffs may provide a more flexible commodity unit when evaluating e-cigarette demand in general or heterogenous populations, whereas device-specific units may prove more valuable when studying populations with consistent and known product use.

scholarly journals The development and psychometric properties of a self-report Catastrophising Questionnaire

2020 ◽  
Author(s):  
Alexandra C Pike ◽  
Jade Serfaty ◽  
Oliver Joe Robinson
Keyword(s):  
Discriminant Validity ◽  
Self Report ◽  
Underlying Structure ◽  
Short Version ◽  
Good Test ◽  
Total N ◽  
Retest Reliability ◽  
Convergent And Discriminant Validity ◽  
Exploratory Factor Analyses ◽  
Test Retest Reliability

Catastrophising is a cognitive process that can be defined as predicting the worst possible outcome. It has been shown to be related to psychiatric diagnoses such as depression and anxiety, yet there are no self-report questionnaires specifically measuring it outside the context of pain research. Here, we therefore develop a novel, comprehensive self-report measure of general catastrophising. We performed five online studies (total n=734), in which we created and refined a Catastrophising Questionnaire, and used a factor analytic approach to understand its underlying structure. We also assessed convergent and discriminant validity, and analysed test-retest reliability. Furthermore, we tested the ability of Catastrophising Questionnaire scores to predict relevant clinical variables over and above other questionnaires. Finally, we also developed a four-item short version of this questionnaire. We found that our questionnaire is best fit by a single underlying factor, and shows convergent and discriminant validity. Exploratory factor analyses indicated that catastrophising is independent from other related constructs, including anxiety and worry. Moreover, we demonstrate incremental validity for this questionnaire in predicting diagnostic and medication status. Finally, we demonstrate that our Catastrophising Questionnaire has good test-retest reliability (Intra-Class-Correlation Coefficient=0.77, p<.001). Critically, we can now, for the first time, obtain detailed self-report data on catastrophising.

scholarly journals The development and psychometric properties of a self-report Catastrophizing Questionnaire

2021 ◽  
Vol 8 (1) ◽  
pp. 201362
Author(s):  
Alexandra C. Pike ◽  
Jade R. Serfaty ◽  
Oliver J. Robinson
Keyword(s):  
Discriminant Validity ◽  
Intraclass Correlation ◽  
Self Report ◽  
Underlying Structure ◽  
Short Version ◽  
Good Test ◽  
Retest Reliability ◽  
Convergent And Discriminant Validity ◽  
Exploratory Factor Analyses ◽  
Test Retest Reliability

Catastrophizing is a cognitive process that can be defined as predicting the worst possible outcome. It has been shown to be related to psychiatric diagnoses such as depression and anxiety, yet there are no self-report questionnaires specifically measuring it outside the context of pain research. Here, we therefore develop a novel, comprehensive self-report measure of general catastrophizing. We performed five online studies (total n = 734), in which we created and refined a Catastrophizing Questionnaire, and used a factor analytic approach to understand its underlying structure. We also assessed convergent and discriminant validity, and analysed test–retest reliability. Furthermore, we tested the ability of Catastrophizing Questionnaire scores to predict relevant clinical variables over and above other questionnaires. Finally, we also developed a four-item short version of this questionnaire. We found that our questionnaire is best fit by a single underlying factor, and shows convergent and discriminant validity. Exploratory factor analyses indicated that catastrophizing is independent from other related constructs, including anxiety and worry. Moreover, we demonstrate incremental validity for this questionnaire in predicting diagnostic and medication status. Finally, we demonstrate that our Catastrophizing Questionnaire has good test–retest reliability (intraclass correlation coefficient = 0.77, p < 0.001). Critically, we can now, for the first time, obtain detailed self-report data on catastrophizing.

scholarly journals The 2014 Ontario Child Health Study Emotional Behavioural Scales (OCHS-EBS) Part I: A Checklist for Dimensional Measurement of Selected DSM-5 Disorders

2018 ◽  
Vol 64 (6) ◽  
pp. 423-433 ◽  
Author(s):  
Laura Duncan ◽  
Katholiki Georgiades ◽  
Li Wang ◽  
Jinette Comeau ◽  
Mark A. Ferro ◽  
...  
Keyword(s):  
General Population ◽  
Child Health ◽  
Conduct Disorder ◽  
Discriminant Validity ◽  
Health Study ◽  
Retest Reliability ◽  
Dimensional Measurement ◽  
Dsm 5 ◽  
Convergent And Discriminant Validity ◽  
Test Retest Reliability

Objectives: To describe the development and psychometric properties of the 2014 Ontario Child Health Study Emotional Behavioural Scales (OCHS-EBS) for dimensional measurement of 7 disorders based on criteria from the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders ( DSM-5). Methods: Scale items were selected by agreement among 19 child psychologists and psychiatrists rating the correspondence between item descriptions and DSM-5 symptoms. Psychometric evaluation of the item properties and parent/caregiver and youth scales came from a general population study of 10,802 children and youth aged 4 to 17 years in 6537 families. Test-retest reliability data were collected from a subsample of 280 children and their caregivers who independently completed the OCHS-EBS checklist on 2 occasions 7 to 14 days apart. Structural equation modelling was used to assess internal and external convergent and discriminant validity—the latter tested against the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID). Results: Confirmatory factor analyses exhibited adequate item fit to all scales. Except for conduct disorder and youth-assessed separation anxiety disorder, internal (Cronbach’s α) and test-retest reliability (Pearson’s r) for scale scores were 0.70 or above. Except for youth-assessed conduct disorder, the OCHS-EBS met criteria for internal and convergent and discriminant validity. Compared with the MINI-KID, the OCHS-EBS met criteria for external convergent and discriminant validity. Conclusions: The OCHS-EBS provide reliable and valid dimensional measurement of 7 DSM-5 disorders assessed by caregivers and youth in the general population. Part II describes use of the OCHS-EBS as a categorical (present/absent) measure of disorder.

scholarly journals Psychometric properties of the Short Leyton Obsessional Inventory-Child Version in a community sample of Spanish children and adolescents

2016 ◽  
Vol 33 (1) ◽  
pp. 26
Author(s):  
Marina Iniesta-Sepúlveda ◽  
Ana I. Rosa-Alcázar ◽  
Beatriz Ruiz-García ◽  
Jose A. López-Pina
Keyword(s):  
Psychometric Properties ◽  
Children And Adolescents ◽  
Discriminant Validity ◽  
Factor Model ◽  
Community Sample ◽  
Spanish Version ◽  
Obsessive Compulsive ◽  
Good Test ◽  
Convergent And Discriminant Validity ◽  
Test Retest Reliability

The aim of the current study was to analyze psychometric properties of the Short LOI-CV in Spanish community sample. Participants were 914 children and adolescents with mean age of 13.01 years (51.3% males). An EFA yielded a three-factor model representing Obsessions, Compulsions, and Cleanliness dimensions. Both, total score and subscales showed an adequate internal consistency. The Spanish version also exhibited good test-retest reliability and moderate convergent and discriminant validity. The younger participants (from 8 to 10 years) obtained higher means for total score and subscales than older participants (groups 11-13 and 14-18 years). Significant differences related to gender were also observed since males obtained higher means in Compulsions subscale. Despite more research is required, the Spanish version of the Short LOI-CV exhibited promising psychometric results to assess obsessive-compulsive symptoms in community population.

scholarly journals NIH Toolbox Cognitive Battery (NIHTB-CB): The NIHTB Pattern Comparison Processing Speed Test

2014 ◽  
Vol 20 (6) ◽  
pp. 630-641 ◽  
Author(s):  
Noelle E. Carlozzi ◽  
David S. Tulsky ◽  
Nancy D. Chiaravalloti ◽  
Jennifer L. Beaumont ◽  
Sandra Weintraub ◽  
...  
Keyword(s):  
Construct Validity ◽  
Processing Speed ◽  
Discriminant Validity ◽  
Composite Index ◽  
Good Test ◽  
Validation Data ◽  
Retest Reliability ◽  
Speed Test ◽  
Pattern Comparison ◽  
Test Retest Reliability

AbstractThe NIH Toolbox (NIHTB) Pattern Comparison Processing Speed Test was developed to assess processing speed within the NIHTB for the Assessment of Neurological Behavior and Function Cognition Battery (NIHTB-CB). This study highlights validation data collected in adults ages 18–85 on this measure and reports descriptive data, test–retest reliability, construct validity, and preliminary work creating a composite index of processing speed. Results indicated good test–retest reliability. There was also evidence for both convergent and discriminant validity; the Pattern Comparison Processing Speed Test demonstrated moderate significant correlations with other processing speed tests (i.e., WAIS-IV Coding, Symbol Search and Processing Speed Index), small significant correlations with measures of working memory (i.e., WAIS-IV Letter-Number Sequencing and PASAT), and non-significant correlations with a test of vocabulary comprehension (i.e., PPVT-IV). Finally, analyses comparing and combining scores on the NIHTB Pattern Comparison Processing Speed Test with other measures of simple reaction time from the NIHTB-CB indicated that a Processing Speed Composite score performed better than any test examined in isolation. The NIHTB Pattern Comparison Processing Speed Test exhibits several strengths: it is appropriate for use across the lifespan (ages, 3–85 years), it is short and easy to administer, and it has high construct validity. (JINS, 2014,20, 1–12)

Screening for Neurocognitive Impairment in Pediatric Cancer Long-Term Survivors

2008 ◽  
Vol 26 (25) ◽  
pp. 4138-4143 ◽  
Author(s):  
Kevin R. Krull ◽  
M. Fatih Okcu ◽  
Brian Potter ◽  
Neelam Jain ◽  
ZoAnn Dreyer ◽  
...  
Keyword(s):  
Cancer Survivors ◽  
Screening Method ◽  
Reliability And Validity ◽  
Parent Rating ◽  
Good Test ◽  
Validity Data ◽  
Retest Reliability ◽  
Test Retest Reliability

Purpose Recent studies suggest that up to 40% of childhood cancer survivors may experience neurocognitive problems, a finding that has led the Children's Oncology Group to recommend regular evaluation. However, for a variety of reasons, including costs, time restraints, health insurance, and access to professional resources, these guidelines are often difficult to implement. We report reliability and validity data on a brief neurocognitive screening method that could be used to routinely screen patients in need of comprehensive follow-up. Patients and Methods Two hundred forty consecutive patients were screened during their annual visits to a long-term survivor clinic using standard neurocognitive measures and brief parent rating. From this total, 48 patients had a second screening, and 52 patients had a comprehensive follow-up evaluation. Test-retest reliability and predictive and discriminative validity were examined. Results Good test-retest reliability was demonstrated, with an overall r = 0.72 and all individual subtest correlations greater than r = 0.40. Although means tended to improve from first to second testing, no significant changes were detected (all P > .10). The screen accurately predicted global intellect (F6,45 = 11.81, P < .0001), reading skills (F6,45 = 4.74, P < .001), and mathematics (F6,45 = 3.35, P < .008). Parent rating was a marginal indicator of global intellect only. Conclusion The brief neurocognitive screening was a better predictor of child functioning than specific parent rating. This brief measure, which can be completed in 30 minutes, is a practical and reliable method to identify cancer survivors in need of further neurocognitive follow-up.

scholarly journals Validity and Reliability of the Italian Version of the Functioning Assessment Short Test (FAST) in Bipolar Disorder

2012 ◽  
Vol 8 (1) ◽  
pp. 67-73 ◽  
Author(s):  
Maria Francesca Moro ◽  
Francesc Colom ◽  
Francesca Floris ◽  
Elisa Pintus ◽  
Mirra Pintus ◽  
...  
Keyword(s):  
Internal Consistency ◽  
Discriminant Validity ◽  
Validity And Reliability ◽  
Italian Version ◽  
Good Test ◽  
Retest Reliability ◽  
Short Test ◽  
Bipolar Patients ◽  
Test Retest Reliability ◽  
Functioning Assessment

Background:Functioning Assessment Short Test (FAST) is a brief instrument designed to assess the main functioning problems experienced by psychiatric patients, specifically bipolar patients. It includes 24 items assessing impairment or disability in six domains of functioning: autonomy, occupational functioning, cognitive functioning, financial issues, interpersonal relationships and leisure time. The aim of this study is to measure the validity and reliability of the Italian version of this instrument.Methods:Twenty-four patients with DSM-IV TR bipolar disorder and 20 healthy controls were recruited and evaluated in three private clinics in Cagliari (Sardinia, Italy). The psychometric properties of FAST (feasibility, internal consistency, concurrent validity, discriminant validity (patients vs controls and eutimic patients vs manic and depressed), and test-retest reliability were analyzed.Results:The internal consistency obtained was very high with a Cronbach's alpha of 0.955. A highly significant negative correlation with GAF was obtained (r = -0.9; p < 0.001) pointing to a reasonable degree of concurrent validity. FAST show a good test-retest reliability between two independent evaluation differing of one week (mean K =0.73). The total FAST scores were lower in controls as compared with Bipolar Patients and in Euthimic patients compared with Depressed or Manic.Conclusion:The Italian version of the FAST showed similar psychometrics properties as far as regard internal consistency and discriminant validity of the original version and show a good test retest reliability measure by means of K statistics.

scholarly journals Symptom-Dependent Changes in MEG-Derived Neuroelectric Brain Activity in Traumatic Brain Injury Patients with Chronic Symptoms

2021 ◽  
Vol 9 (2) ◽  
pp. 20
Author(s):  
Don Krieger ◽  
Paul Shepard ◽  
Ryan Soose ◽  
Ava M. Puccio ◽  
Sue Beers ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Brain Activity ◽  
Severity Index ◽  
Brief Symptom Inventory ◽  
Good Test ◽  
Retest Reliability ◽  
Test Retest Reliability

Neuroelectric measures derived from human magnetoencephalographic (MEG) recordings hold promise as aides to diagnosis and treatment monitoring and targeting for chronic sequelae of traumatic brain injury (TBI). This study tests novel MEG-derived regional brain measures of tonic neuroelectric activation for long-term test-retest reliability and sensitivity to symptoms. Resting state MEG recordings were obtained from a normative cohort, Cambridge Centre for Ageing and Neuroscience (CamCAN), baseline: n = 619; mean 16-month follow-up: n = 253) and a chronic symptomatic TBI cohort, Targeted Evaluation, Action and Monitoring of Traumatic Brain Injury (TEAM-TBI), baseline: n = 64; mean 6-month follow-up: n = 39). For the CamCAN cohort, MEG-derived neuroelectric measures showed good long-term test-retest reliability for most of the 103 automatically identified stereotypic regions. The TEAM-TBI cohort was screened for depression, somatization, and anxiety with the Brief Symptom Inventory and for insomnia with the Insomnia Severity Index. Linear classifiers constructed from the 103 regional measures from each TEAM-TBI cohort member distinguished those with and without each symptom, with p < 0.01 for each—i.e., the tonic regional neuroelectric measures of activation are sensitive to the presence/absence of these symptoms. The novel regional MEG-derived neuroelectric measures obtained and tested in this study demonstrate the necessary and sufficient properties to be clinically useful—i.e., good test-retest reliability, sensitivity to symptoms in each individual, and obtainable using automatic processing without human judgement or intervention.

scholarly journals Psychometric properties of the Short Leyton Obsessional Inventory-Child Version in a community sample of Spanish children and adolescents

2016 ◽  
Vol 33 (1) ◽  
pp. 26-31
Author(s):  
Marina Iniesta-Sepúlveda ◽  
Ana I. Rosa-Alcázar ◽  
Beatriz Ruiz-García ◽  
Jose A. López-Pina
Keyword(s):  
Psychometric Properties ◽  
Children And Adolescents ◽  
Discriminant Validity ◽  
Factor Model ◽  
Community Sample ◽  
Spanish Version ◽  
Obsessive Compulsive ◽  
Good Test ◽  
Convergent And Discriminant Validity ◽  
Test Retest Reliability

El objetivo de este estudio fueanalizar las propiedades psicométricas del ShortLOI-CVen unamuestra españolacomunitaria.Los participantes fueron 914 niñosyadolescentescon edad mediade13.01años (varones =51.3%).ElAFE mostróun modelo de tresfactores compuesto por los dominios Obsesiones, CompulsionesyLimpieza. Tanto lapuntuación total comolas subescalas mostraron una adecuadaconsistenciainterna.Laversión española mostróbuena fiabilidad test-retestymoderada validezconvergenteydiscriminante.Los participantes más jóvenes (8a10 años) obtuvieron medias más altasquela escala Totalydistintas subescalas quelos mayores (grupo de11-13yde 14-18años). Se encontraron también diferencias significativas respecto al sexo, siendo losvarones los que mayoresmedias mostraron en laescala de compulsiones.Pese aqueesnecesariamás investigación, estos resultados sugirieron que la versión en español del ShortLOI-CV mostróun buen rendimiento psicométricos para evaluar los síntomas obsesivo-compulsivosen niñosyadolescentesen población comunitaria The aim of the current study was to analyze psychometric properties of the Short LOI-CV in Spanish community sample. Participants were 914 children and adolescents with mean age of 13.01 years (51.3% males). An EFA yielded a three-factor model representing Obsessions, Compulsions, and Cleanliness dimensions. Both, total score and subscales showed an adequate internal consistency. The Spanish version also exhibited good test-retest reliability and moderate convergent and discriminant validity. The younger participants (from 8 to 10 years) obtained higher means for total score and subscales than older participants (groups 11-13 and 14-18 years). Significant differences related to gender were also observed since males obtained higher means in Compulsions subscale. Despite more research is required, the Spanish version of the Short LOI-CV exhibited promising psychometric results to assess obsessive-compulsive symptoms in community population.

scholarly journals Reliability, and Convergent and Discriminant Validity of Gaming Disorder Scales: A Meta-Analysis

2021 ◽  
Vol 12 ◽  
Author(s):  
Seowon Yoon ◽  
Yeji Yang ◽  
Eunbin Ro ◽  
Woo-Young Ahn ◽  
Jueun Kim ◽  
...  
Keyword(s):  
Systematic Review ◽  
Internet Addiction ◽  
Discriminant Validity ◽  
Meta Analysis ◽  
Effect Sizes ◽  
Gaming Disorder ◽  
Reliability Generalization ◽  
Retest Reliability ◽  
Convergent And Discriminant Validity ◽  
Test Retest Reliability

Background: An association between gaming disorder (GD) and the symptoms of common mental disorders is unraveled yet. In this preregistered study, we quantitatively synthesized reliability, convergent and discriminant validity of GD scales to examine association between GD and other constructs.Methods: Five representative GD instruments (GAS-7, AICA, IGDT-10, Lemmens IGD-9, and IGDS9-SF) were chosen based on recommendations by the previous systematic review study to conduct correlation meta-analyses and reliability generalization. A systematic literature search was conducted through Pubmed, Proquest, Embase, and Google Scholar to identify studies that reported information on either reliability or correlation with related variables. 2,124 studies were full-text assessed as of October 2020, and 184 were quantitatively synthesized. Conventional Hedges two-level meta-analytic method was utilized.Results: The result of reliability generalization reported a mean coefficient alpha of 0.86 (95% CI = 0.85–0.87) and a mean test-retest estimate of 0.86 (95% CI = 0.81–0.89). Estimated effect sizes of correlation between GD and the variables were as follows: 0.33 with depression (k = 45; number of effect sizes), 0.29 with anxiety (k = 37), 0.30 with aggression (k = 19), –0.22 with quality of life (k = 18), 0.29 with loneliness (k = 18), 0.56 with internet addiction (k = 20), and 0.40 with game playtime (k = 53), respectively. The result of moderator analyses, funnel and forest plots, and publication bias analyses were also presented.Discussion and Conclusion: All five GD instruments have good internal consistency and test-retest reliability. Relatively few studies reported the test-retest reliability. The result of correlation meta-analysis revealed that GD scores were only moderately associated with game playtime. Common psychological problems such as depression and anxiety were found to have a slightly smaller association with GD than the gaming behavior. GD scores were strongly correlated with internet addiction. Further studies should adopt a rigorous methodological procedure to unravel the bidirectional relationship between GD and other psychopathologies.Limitations: The current study did not include gray literature. The representativeness of the five tools included in the current study could be questioned. High heterogeneity is another limitation of the study.Systematic Review Registration: [https://www.crd.york.ac.uk/PROSPERO/], identifier [CRD42020219781].

Sign in / Sign up

Export Citation Format

Share Document