Web-based Sample Research Articles

Evaluation of the Chrononutrition Profile – Questionnaire in an online community sample of adults

Chrononutrition (i.e., circadian timing of food intake) has been linked to indicators of health status such as body weight and insulin resistance. A measure of general chrononutrition patterns, the Chrononutrition Profile – Questionnaire, has been developed and preliminary evidence of validity and reliability of the measure has been documented in a homogenous group of undergraduates. However, this measure has not yet been validated in an online, community-based sample. The present study therefore aimed to evaluate the validity of the Chrononutrition Profile – Questionnaire in a web-based community sample. Analyses suggested that the Chrononutrition Profile – Questionnaire displays acceptable validity for use in diverse community samples of adults, with moderate to strong correlations (r = 0.39–0.91) between the Chrononutrition Profile – Questionnaire and measures of dietary intake and sleep. This measure is suitable for use in a variety of settings, by stakeholders and scientists, and may contribute to future development of health behavior interventions and research programs centered around chrononutrition.

Selective Changes in Medical Cannabis Use Early in the COVID-19 Pandemic: Findings from a Web-Based Sample of Adults in the United States.

Background: The COVID-19 pandemic has had widespread impacts on mental health and substance use. While increases in nonmedical cannabis use during COVID-19 have been documented among people who use cannabis across a diversity of settings, changes in specific medical applications of cannabis during the COVID-19 pandemic have not been characterized. We sought to examine changes in the prevalence, frequency, and mode of use of medical cannabis for a range of commonly treated conditions and symptoms during COVID-19. Methods: Data were obtained from an online survey of a sample of adults in the United States who use cannabis (n=1886), administered in September 2020. This study was restricted to participants who self-reported past-year medical cannabis use (n=598). Using data reported in a retrospective (pre-COVID) and current assessment period, we examined changes in cannabis use prevalence, frequency, and inhalation as the primary mode of administration for 11 commonly treated conditions. Results: There were slight but statistically significant increases in weekly (from 21.4% to 23.4%) and daily (from 16.2% to 20.7%) self-reported medical cannabis use during COVID-19 (p<0.001). Anxiety was the only specific therapeutic purpose for which daily cannabis use increased statistically significantly during COVID-19 (18.5% to 25.4%; p=0.004). In multivariable logistic regression, the odds of increasing cannabis use for anxiety during COVID-19 were statistically significantly higher for women, respondents from Western states, and states with legal medical and nonmedical cannabis. Discussion: We detected slight shifts toward higher frequencies of medical cannabis use during COVID-19. Disaggregated by therapeutic indication, daily cannabis use to manage anxiety increased during the pandemic. There is a need to assess whether changes in cannabis use that coincided with the pandemic will be sustained over time, and how these changes are connected to mental health outcomes, particularly among women.

Health Care Providers' Knowledge, Attitudes, and Practices and the Association With Referrals to the National Diabetes Prevention Program Lifestyle Change Program.

PurposeTo examine how health care providers’ knowledge, attitudes, and practices affect their referrals to the National Diabetes Prevention Program.DesignCross-sectional, self-report data from DocStyles—a web-based surveySettingUSASamplePracticing family practitioners, nurse practitioners, pharmacists, and internists, n = 1,503.MeasuresQuestions regarding health care providers’ knowledge, attitudes, and practices and their referrals to the National Diabetes Prevention Program.AnalysisBivariate and multivariate analyses were used to calculate predictive margins and the average marginal effect.ResultsOverall, 15.2% of health care providers (n = 1,503) reported making a referral to the National Diabetes Prevention Program. Health care providers were more likely to make referrals if they were familiar with the program (average marginal effect = 36.0%, 95% CI: 29.1%, 42.8%), reported knowledge of its availability (average marginal effect=49.1%, 95% CI: 40.2%, 57.9%), believed it was important to make referrals to the program (average marginal effect = 20.7%, 95% CI: 14.4%, 27.0%), and used electronic health records to manage patients with prediabetes (average marginal effect = 9.1%, 95% CI: 5.4%, 12.7%). Health care providers’ demographic characteristics had little to no association with making referrals.ConclusionMaking referrals to the National Diabetes Prevention Program was associated with health care providers’ knowledge of the program and its reported availability, their attitudes, and their use of the electronic health record system to manage patients with prediabetes.

60.2 GEOSOCIAL “HOOK-UP” APP USE AND THE MENTAL HEALTH OF SEXUAL MINORITY ADOLESCENTS

This session aims to review the use of geosocial networking applications (GNAs) among sexual-minority adolescents, as well as associations between use of GNAs and psychopathology. Literature from both adults and adolescents was reviewed regarding the prevalence of using GNAs and associated psychopathology. Original data will also be presented. Using data from a large nontargeted web-based sample (N = 4203), we examined demographics associated with the use of GNAs. Using multivariable logistic regression adjusting for demographic differences between users and nonusers, we examined associations between GNA use, anxiety (Generalized Anxiety Disorder Scale-7 [GAD-7]), and compulsive sexual behavior disorder (CSBD; Harvey-Bradshaw Index 19 [HBI-19]). Based on literature review, an estimated 1 in 4 sexual-minority adolescent males report using GNAs. Of these, 69% reported having sex with partners met on these apps, and of these only 25% reported using condoms consistently. Adolescents consistently report using GNAs to connect with others like them and to explore sexual orientation and intimacy; however, existing GNAs are primarily geared toward adults and are sexually focused, presenting potential risks. In our web-based sample, GNA users were more likely to be male and nonheterosexual. GNA use was associated with CSBD but not anxiety. GNA use is common among sexual-minority adolescents. These adolescents use this app to fulfill developmentally appropriate needs (ie, exploration of identity and intimacy); however, existing GNAs are marketed toward adults and are not geared toward their developmental needs, which presents potential risks. GNA use appears to be more common among nonheterosexual males and is associated with CSBD. Future research is needed to better understand this association, including whether GNAs promote CSBD through intermittent ratio reinforcement, and whether the use of GNAs represents a symptom of CSBD.

Feasibility and Acceptability of a Web-Based Caregiver Decision Aid (Safety in Dementia) for Firearm Access: Pilot Randomized Controlled Trial.

BackgroundFirearms are common in the households of persons with Alzheimer disease and related dementias (ADRD). Safety in Dementia (SiD) is a free web-based decision aid that was developed to support ADRD caregivers in addressing firearm access.ObjectiveWe aimed to evaluate the feasibility and acceptability of SiD among a web-based sample of ADRD caregivers.MethodsSiD was tested in 2 phases by using participants who were recruited from a web-based convenience sample (Amazon Mechanical Turk participants). In phase 1, caregivers were randomized to view either the intervention (SiD) or the control (Alzheimer’s Association materials), and the blinding of participants to the study arms was conducted. In phase 2, caregivers of individuals with ADRD and firearm access were recruited; all of these participants viewed the firearm section of SiD. In both phases, participants viewed SiD independently for as long as they wanted. Measures for evaluating decision-making and SiD acceptability were used, and these were assessed via a self-administered web-based questionnaire.ResultsParticipants were recruited for phases 1 (n=203) and 2 (n=54). Although it was feasible to collect the study outcome data in a web-based format, in phase 1, there were no significant differences between SiD and the control in terms of decision-making and self-efficacy. The majority (137/203, 67.5%) of phase 1 participants spent between 5 and 10 minutes reviewing the resources. In phase 2, 61% (33/54) of participants spent 5 to 10 minutes viewing the firearm section, and 31% (17/54) spent 10 to 20 minutes viewing this section. Usability and acceptability were high across the phases.ConclusionsSiD represents a new resource for promoting safety among people with dementia, and high acceptability was achieved in a pilot trial. In this sample, SiD performed similarly to Alzheimer’s Association materials in supporting decision-making and self-efficacy.

Efficacy of a Single-Session "Empowered Relief" Zoom-Delivered Group Intervention for Chronic Pain: Randomized Controlled Trial Conducted During the COVID-19 Pandemic.

BackgroundCognitive behavioral therapy–pain is an evidence-based treatment for chronic pain that can have significant patient burden, including health care cost, travel, multiple sessions, and lack of access in remote areas.ObjectiveThe study aims to pilot test the efficacy of a single-session videoconference-delivered empowered relief (ER) intervention compared to waitlist control (WLC) conditions among individuals with chronic pain. We hypothesized that ER would be superior to WLC in reducing pain catastrophizing, pain intensity, and other pain-related outcomes at 1-3 months posttreatment.MethodsWe conducted a randomized controlled trial involving a web-based sample of adults (N=104) aged 18-80 years with self-reported chronic pain. Participants were randomized (1:1) to 1 of 2 unblinded study groups: ER (50/104, 48.1%) and WLC (54/104, 51.9%). Participants allocated to ER completed a Zoom-delivered class, and all participants completed follow-up surveys at 2 weeks and 1, 2, and 3 months posttreatment. All the study procedures were performed remotely and electronically. The primary outcome was pain catastrophizing 1-month posttreatment, with pain intensity, pain bothersomeness, and sleep disruption as secondary outcomes. We also report a more rigorous test of the durability of treatment effects at 3 months posttreatment. Data were collected from September 2020 to February 2021 and analyzed using intention-to-treat analysis. The analytic data set included participants (18/101, 17.8% clinic patients; 83/101, 82.1% community) who completed at least one study survey: ER (50/101, 49.5%) and WLC (51/104, 49%).ResultsParticipants (N=101) were 69.3% (70/101) female, with a mean age of 49.76 years (SD 13.90; range 24-78); 32.7% (33/101) had an undergraduate degree and self-reported chronic pain for 3 months. Participants reported high engagement (47/50, 94%), high satisfaction with ER (mean 8.26, SD 1.57; range 0-10), and high satisfaction with the Zoom platform (46/50, 92%). For the between-groups factor, ER was superior to WLC for all primary and secondary outcomes at 3 months posttreatment (highest P<.001), and between-groups Cohen d effect sizes ranged from 0.45 to 0.79, indicating that the superiority was of moderate to substantial clinical importance. At 3 months, clinically meaningful pain catastrophizing scale (PCS) reductions were found for ER but not for WLC (ER: PCS −8.72, 42.25% reduction; WLC: PCS −2.25, 11.13% reduction). ER resulted in significant improvements in pain intensity, sleep disturbance, and clinical improvements in pain bothersomeness.ConclusionsZoom-delivered ER had high participant satisfaction and very high engagement. Among adults with chronic pain, this single-session, Zoom-delivered, skills-based pain class resulted in clinically significant improvement across a range of pain-related outcomes that was sustained at 3 months. Web-based delivery of ER could allow greater accessibility of home-based pain treatment and could address the inconveniences and barriers faced by patients when attempting to receive in-person care.Trial RegistrationClinicalTrials.gov NCT04546685; https://clinicaltrials.gov/ct2/show/NCT04546685

Psychometric Analysis of a Postulated Set of Evolved Human Motives.

Many different general systems of human motives have been postulated in the psychological literature. However, as yet, no consensus on which motives should be nominated, nor how many there are, has emerged. Recently, we deduced the existence of a number of motives using a logical argument derived from evolutionary theory; that humans have evolved an independent psychological “engine” to respond to each kind of evolutionary problem set by a dimension of the human niche, or life-way. Here, we confirm the existence of 14 out of 15 of these postulated motives using factor analysis on a web-based sample of 500 respondents from the UK: Lust, Hunger, Fear, Disgust, Attract, Love, Nurture, Hoard, Create, Affiliate, Status, Justice, Curiosity, and Play. The items which loaded most strongly for each factor confirmed the expected core value of each motive. Comfort did not emerge, perhaps because it is more about satisfying specific physiological requirements than a cluster of activities linked semantically by the concept of attaining “comfort.” We believe this analysis can form the foundation of a scale for use in applied psychological work ranging from personality testing to personnel selection to public health program design.

Establishing the Reliability and Validity of Web-based Singing Research

In this study, the robustness of an online tool for objectively assessing singing ability was examined by: (1) determining the internal consistency and test-retest reliability of the tool; (2) comparing the task performance of web-based participants (n = 285) with a group (n = 52) completing the tool in a controlled laboratory setting, and then determining the convergent validity between settings, and (3) comparing participants’ task performance with previous research using similar singing tasks and populations. Results indicated that the online singing tool exhibited high internal consistency (Cronbach’s alpha = .92), and moderate-to-high test-retest reliabilities (.65–.80) across an average 4.5-year-span. Task performance for web- and laboratory-based participants (n = 82) matched on age, sex, and music training were not significantly different. Moderate-to-large correlations (|r| =.31–.59) were found between self-rated singing ability and the various singing tasks, supporting convergent validity. Finally, task performance of the web-based sample was not significantly different to previously reported findings. Overall the findings support the robustness of the online tool for objectively measuring singing pitch accuracy beyond a controlled laboratory environment and its potential application in large-scale investigations of singing and music ability.

Using web-survey to collect data on psychological impacts of COVID-19 on hotel employees in Ghana: A methodological review

Increasing global Internet penetration and technological advancement have stimulated the adoption of online mode of data collection by scholars across different disciplines. Web-based surveys are popular in the Western world, however, their usage among Ghanaian hospitality and tourism scholars is rare despite the several advantages of web-based surveys. This research note compares the demographics of a web-based sample with previous hotel employee studies conducted in Ghana, and in so doing, highlights the advantages and limitations of using a web-based survey in a developing country context. Relative to paper-and-pencil questionnaires, it was less costly using the web-survey to investigate the psychological impact of COVID-19 on hotel employees in Ghana. Furthermore, the web-survey relatively produced quick results as well as reaching respondents in different locations in the country. The demographics of the web-survey appeared comparable to those reported in previous studies conducted in the country. However, employees with college degrees working in star-rated facilities were overly represented in the web-survey sample. Duplicate responses were also observed in the web-survey sample. Web-based surveys provide a viable option for hospitality and tourism research work in Ghana, particularly in the period of COVID-19 and its associated social distancing, lockdowns, and high risk of infection. However, there are potential challenges regarding representativeness, sampling bias and multiple submissions.

Adjustment disorder, traumatic stress, depression and anxiety in Poland during an early phase of the COVID-19 pandemic

ABSTRACT Background: The current COVID-19 pandemic is associated with a variety of stressors. Preliminary research has demonstrated that general public are experiencing a range of psychological problems, including stress-related disturbances. However, to date, there is not much research on the prevalence of adjustment disorder during the current pandemic. Objectives: This study aimed to assess the prevalence and severity of symptoms of adjustment disorder compared to posttraumatic symptoms, depression and generalized anxiety in a large sample of adult Poles, in the first phase of the current pandemic. Method: Self-report data from a web-based sample (N = 1,742) was collected between March 25 and April 27, just after the introduction of nationwide quarantine measures in Poland. Results: The current COVID-19 pandemic was a highly stressful event for 75% of participants and the strongest predictor of adjustment disorder. Increased symptoms of adjustment disorder were reported by 49%, and they were associated with female gender and not having a full-time job. However, after exclusion of co-occurring symptomatology, 14% of the sample were finally qualified as meeting diagnostic criteria of adjustment disorder. A substantial proportion of the sample screened also positive for generalized anxiety (44%) and depression (26%); the rate for presumptive PTSD diagnosis was 2.4%. Conclusions: High rates of negative mental health outcomes were found in the Polish population in the first weeks into the COVID-19 pandemic and lockdown measures. They indicate the intense current stress-related symptoms in the early phase of the pandemic and warrant further monitoring on population’s mental health.

Suicidal Thoughts and Behaviors and Their Associations With Transitional Life Events in Men and Women: Findings From an International Web-Based Sample.

BackgroundAlthough numerous studies have demonstrated sex differences in the prevalence of suicidal thoughts and behaviors (STB), there is a clear lack of research examining the similarities and differences between men and women in terms of the relationship between STB, transitional life events, and the coping strategies employed after experiencing such events when they are perceived as stressful.ObjectiveThis study aims to examine the differences between men’s and women’s experiences of STB, sociodemographic predictors of STB, and how coping responses after experiencing a stressful transitional life event predict STB.MethodsA web-based self-report survey was used to assess the health and well-being of a voluntary community-based sample of men and women aged 16 years and older, living in Australia, Canada, New Zealand, the United Kingdom, and the United States, who were recruited using web-based social media promotion and snowballing.ResultsIn total, 10,765 eligible web-based respondents participated. Compared with men, a significantly greater proportion of women reported STB (P<.001) and endorsed experiencing a transitional life event as stressful (P<.001). However, there were no gender differences in reporting that the transitional life event or events was stressful for those who also reported STB. Significant sociodemographic adjusted risk factors of STB included younger age; identifying as a sexual minority; lower subjective social connectedness; lower subjective intimate bonds; experiencing a stressful transitional life event in the past 12 months; living alone (women only); not being in employment, education, or training (women only); suddenly or unexpectedly losing a job (men only); and experiencing a relationship breakdown (men only). Protective factors included starting a new job, retiring, having a language background other than English, and becoming a parent for the first time (men only). The results relating to coping after experiencing a self-reported stressful transitional life event in the past 12 months found that regardless of sex, respondents who reported STB compared with those who did not were less likely to engage in activities that promote social connections, such as talking about their feelings (P<.001). Coping strategies significantly explained 19.0% of the STB variance for men (F16,1027=14.64; P<.001) and 22.0% for women (F16,1977=36.45; P<.001).ConclusionsThis research highlights multiple risk factors for STB, one of which includes experiencing at least one stressful transitional life event in the past 12 months. When individuals are experiencing such events, support from services and the community alike should consider using sex-specific or targeted strategies, as this research indicates that compared with women, more men do nothing when experiencing stress after a transitional life event and may be waiting until they experience STB to engage with their social networks for support.

Willingness of Adults in the United States to Receive HIV Testing in Dental Care Settings: Cross-Sectional Web-Based Study.

BackgroundThe Centers for Disease Control and Prevention estimates that 1.1 million people in the United States are living with HIV and 1 in 8 are estimated to be unaware of their serostatus. Little is known about whether individuals would consider being tested for HIV in nontraditional health care settings such as a dentist’s office. Studies in selected US cities have indicated high acceptability of receiving an HIV test among people attending dental clinics. However, we are not aware of studies that have assessed willingness to receive HIV testing in dental care settings at a national level.ObjectiveUsing a web-based sample of adult residents of the United States, we sought to assess the self-reported willingness to receive any type of HIV testing (ie, oral fluid rapid testing, finger-stick blood rapid testing, or venipuncture blood testing) in a dental care setting and evaluate independent associations of willingness with the extent to which dental care providers were perceived as knowledgeable about HIV and how comfortable participants felt discussing HIV with their dental care providers.MethodsParticipants were recruited using banner advertisements featured on social networking platforms (Facebook and Instagram) from December 2018 to February 2019. Demographic and behavioral data including information on sexual behaviors in the past 6 months, HIV testing history, and dental/health care–seeking history were collected using an anonymous web-based survey. Willingness to receive any type of HIV testing in a dental care setting was assessed on 4-point scale from very willing to very unwilling. Factors independently associated with participants’ willingness were identified using a multivariable logistic regression model.ResultsOf the 421 participants in our study aged 18 to 73 years, 271 (64.4%) reported having oral sex, 197 (46.8%) reported having vaginal sex, and 136 (32.3%) reported having anal sex in the past 6 months. Approximately one-third had never been tested for HIV (137/421, 32.5%), and the same proportion had not been tested in the past year (137/421, 32.5%). Most participants had dental insurance coverage (356/421, 84.6%), and more than three-fourths reported being very or somewhat willing (326/421, 77.4%) to receive any type of HIV testing in a dental care setting. Higher levels of willingness were associated with being 18 to 24 years versus ≥35 years (aOR 3.22, 95% CI 1.48-6.98), 25 to 34 years versus ≥35 years (aOR 5.26, 95% CI 2.52-10.98), believing that one’s dental care provider is knowledgeable about HIV (aOR 2.04, 95% CI 1.06-3.92), and feeling comfortable discussing HIV with one’s dental care provider (aOR 9.84, 95% CI 3.99-24.27).ConclusionsOur data indicate high acceptability of receiving HIV testing in a dental care setting, especially among those who report having a positive patient-provider relationship. Future research should focus on assessing dental care providers’ attitudes, self-efficacy, and beliefs about whether HIV testing fits into the scope of dentistry.

Depression severity is associated with impaired facial emotion processing in a large international sample

BackgroundDepression is associated with biases in facial emotion processing, which have an impact on the course and treatment of depression. While decades of research have established a negativity bias in processing in depression, there is still a gap in our understanding of how depression severity impacts sensitivity to detecting differences in emotional faces. MethodsWe examined emotion sensitivity (ES), or the ability to to detect subtle differences in emotional faces, in a large, geographically and culturally diverse, web-based sample (N = 6598, age range = 18–96, 56.50% female, 66% Caucasian). Participants completed ES tasks (fear, anger, or happiness) and a Beck Depression Inventory-II, to determine depression severity. ResultsDepression severity was correlated with overall ES performance as well as ES performance for individual emotions. Higher depression scores were associated with poorer performance in detecting happiness, fear, and anger (ps < .001). Examining performance by region, Eastern countries showed significantly poorer ES performance compared to Western countries, and were significantly more depressed. LimitationsOur sample is non-clinical and self-selected. ConclusionsThis study is an extension of existing research on emotional facial processing, with an approach that takes into consideration the heterogeneity of depression symptoms and corrects psychometric confounds of traditional emotion face processing paradigms. Overall, factors related to severity, task reliability, and facial stimuli should be considered in determining the potential mechanism of facial emotion processing in the onset and course of depression.

Self-Administered Skills-Based Virtual Reality Intervention for Chronic Pain: Randomized Controlled Pilot Study.

BackgroundPatients with chronic pain often have limited access to comprehensive care that includes behavioral pain management strategies. Virtual reality (VR) is an immersive technology and emerging digital behavioral pain therapy with analgesic efficacy for acute pain. We found no scientific literature on skills-based VR behavioral programs for chronic pain populations.ObjectiveThe primary aim of this study is to evaluate the feasibility of a self-administered VR program that included content and skills informed by evidence-based behavioral treatment for chronic pain. The secondary aim is to determine the preliminary efficacy of the VR program in terms of average pain intensity and pain-related interference with activity, stress, mood, and sleep, and its impact on pain-related cognition and self-efficacy. The tertiary aim was to conduct a randomized controlled trial (RCT) and compare the VR treatment with an audio-only treatment. This comparison isolated the immersive effects of the VR program, thereby informing potential mechanisms of effect.MethodsWe conducted an RCT involving a web-based convenience sample of adults (N=97) aged 18-75 years with self-reported chronic nonmalignant low back pain or fibromyalgia, with an average pain intensity >4 over the past month and chronic pain duration >6 months. Enrolled participants were randomly assigned to 1 of 2 unblinded treatments: (1) VR: a 21-day, skills-based VR program for chronic pain; and (2) audio: an audio-only version of the 21-day VR program. The analytic data set included participants who completed at least 1 of 8 surveys administered during the intervention period: VR (n=39) and audio (n=35).ResultsThe VR and audio groups launched a total of 1067 and 1048 sessions, respectively. The majority of VR participants (n=19/25, 76%) reported no nausea or motion sickness. High satisfaction ratings were reported for VR (n=24/29, 83%) and audio (n=26/33, 72%). For VR efficacy, symptom improvement over time was found for each pain variable (all P<.001), with results strengthening after 2 weeks. Importantly, significant time×group effects were found in favor of the VR group for average pain intensity (P=.04), pain-related inference with activity (P=.005), sleep (P<.001), mood (P<.001), and stress (P=.003). For pain catastrophizing and pain self-efficacy, we found a significant declining trend for both treatment groups.ConclusionsHigh engagement and satisfaction combined with low levels of adverse effects support the feasibility and acceptability of at-home skills-based VR for chronic pain. A significant reduction in pain outcomes over the course of the 21-day treatment both within the VR group and compared with an audio-only version suggests that VR has the potential to provide enhanced treatment and greater improvement across a range of pain outcomes. These findings provide a foundation for future research on VR behavioral interventions for chronic pain.

Heterogeneous Indicators of Cognitive Performance and Performance Variability Across the Lifespan.

Reaction time (RT) and RT variability are core components of cognitive performance that can be captured through brief and easy-to-administer tasks of simple RT and choice RT. The current study aims to describe age-related differences in cognitive performance, toward better characterizing normative performance across the lifespan. We examined mean and variability of response times on a simple RT and choice RT tasks in a large and diverse web-based sample (10,060 visitors to TestMyBrain.org). We also examined lifespan-related differences in response time variability using multiple different approaches (raw variability, mean scaled variability, and mean residualized variability). These analyses revealed significant heterogeneity in the patterns of age-related differences in performance, across metrics and within different estimates of the same metric. Based on segmented regression analysis, age of peak performance differed significantly across metrics, with young adults having the best performance based on measures of median RT, middle age adults at peak on certain measures of RT variability (standard deviation and coefficient of variability), and older adults showing the best performance based on accuracy and mean-corrected RT variability. Our results indicate that no single measure of cognitive performance and performance variability produces the same findings with respect to age related change, with further work needed to establish the validity of particular metrics for different applications.

Gender Differences in Familiar Face Recognition and the Influence of Sociocultural Gender Inequality

Are gender differences in face recognition influenced by familiarity and socio-cultural factors? Previous studies have reported gender differences in processing unfamiliar faces, consistently finding a female advantage and a female own-gender bias. However, researchers have recently highlighted that unfamiliar faces are processed less efficiently than familiar faces, which have more robust, invariant representations. To-date, no study has examined whether gender differences exist for familiar face recognition. The current study addressed this by using a famous faces task in a large, web-based sample of > 2000 participants across different countries. We also sought to examine if differences varied by socio-cultural gender equality within countries. When examining raw accuracy as well when controlling for fame, the results demonstrated that there were no participant gender differences in overall famous face accuracy, in contrast to studies of unfamiliar faces. There was also a consistent own-gender bias in male but not female participants. In countries with low gender equality, including the USA, females showed significantly better recognition of famous female faces compared to male participants, whereas this difference was abolished in high gender equality countries. Together, this suggests that gender differences in recognizing unfamiliar faces can be attenuated when there is enough face learning and that sociocultural gender equality can drive gender differences in familiar face recognition.

Are neo-liberals more intuitive? Undetected libertarians confound the relation between analytic cognitive style and economic conservatism

Previous studies consistently showed that analytic cognitive style (ACS) is negatively correlated with social conservatism, but there are mixed findings concerning its relation with economic conservatism. Most tests have relied on a unidimensional (liberal-conservative) operationalization of political orientation. Libertarians tend not only to identify themselves as conservative on this scale but also to score higher on ACS than liberals and conservatives. The presence of libertarians might be the reason for the above-mentioned mixed findings. We investigated the relation between social and economic conservatism and ACS (operationalized using the Cognitive Reflection Test; CRT) in a large, web-based sample. There was a negative correlation between CRT and social conservatism both when libertarians were included and excluded. However, the correlation between CRT and economic conservatism was significantly reduced in magnitude and became non-significant when libertarians were excluded. The results support the argument that the undetected presence of libertarians may confound the ACS-economic conservatism relation.

A Web-based Sample Size Calculator for Reliability Studies

Planning a validation study of a questionnaire or measurement tool requires consideration for testing the validity and reliability aspects of the measurement tool. When it comes to the reliability aspect, a number of commonly used statistical coefficients such as Cronbach’s alpha, intraclass correlation, kappa and Pearson’s correlation coefficients would be considered to provide empirical evidence of the reliability of the tool during the validation process. To ensure that the reliability is accurately assessed, a researcher must consider the sample size requirement for the statistical analyses. In this article, I will introduce a newly developed web-based sample size calculator, which includes the ability to calculate the sample sizes of these four important coefficients. I will also show how to use the calculator for each of the coefficients.

Delay discounting and e-cigarette use: An investigation in current, former, and never cigarette smokers

BackgroundCigarette smokers show greater delay discounting (devaluation of delayed consequences) than non-smokers, suggesting that rapid devaluation of the future contributes to tobacco use through a mechanism in which tobacco-related health consequences are too delayed to discourage smoking. However, little work has quantified delay discounting in relation to electronic cigarette (EC) use, a tobacco product that many users believe to pose fewer negative health consequences than cigarettes. MethodsWe assessed discounting of delayed monetary rewards in a web-based sample of 976 participants, stratified by both EC use (current and never) and cigarette use (current, former, and never). ResultsControlling for demographic variance, current EC users generally showed greater discounting than never EC users (p = .019). Current cigarette smokers also showed greater discounting than former and never smokers (p < .001). However, the between-group difference for EC use was much smaller (ηp2 = .006) than for cigarette use (ηp2 = .026). Moreover, differences in discounting in relation to EC use were not statistically apparent in most pairwise comparisons. Most notably, the difference between former smokers who achieved smoking cessation by transitioning to ECs (i.e., exclusive EC users) and those who have never used ECs or cigarettes was nonsignificant and small (ηp2 = .010). ConclusionsThe smaller effect size for the association between delay discounting and current EC use, relative to current cigarette use, suggests that public perception of ECs as a safer alternative to cigarettes attenuates the role of delay discounting in decisions to use ECs.

Posttraumatic stress, uncontrollability, and emotional distress tolerance.

Although individuals with posttraumatic stress disorder (PTSD) report poor tolerance for distress, the mechanisms underpinning this are unknown. Cognitive models of PTSD propose that appraisals of lacking or losing control impair adaptation to trauma. This study investigated whether avoidance of emotional distress was affected by loss of control in a web-based community sample with and without PTSD symptomatology, expecting that those with PTSD may show more detrimental effects following greater loss of control. PTSD-symptomatic (N=104) and nonsymptomatic (N=102) participants initially had baseline controllability appraisals indexed during a task designed to induce an illusion of control over an unwanted stimulus. Participants were then randomized to be able to delay the onset and also control the termination of interference trials during an effortful visual search task, and separately randomized to receive pretask instructions implying either doubtful or certain controllability. Following the manipulation, participants completed a task indexing delay between selecting and playing a purportedly distressing video at their maximum tolerable distress level. Controlling for age, sex, and instructional condition, those who experienced greater violation of their initial perceptions of control tended to be more avoidant of emotional distress. There was a significant interaction whereby loss of control was more detrimental for those with PTSD symptoms. These initial data suggest that posttraumatic stress exacerbates sensitivity to loss of control, and this appears to directly impact capacity to approach distressing stimuli.