Amazon Mechanical Turk

New technologies regularly bring about profound changes in our daily lives. Romantic relationships are no exception to these transformations. Some philosophers expect the emergence in the near future of love drugs: a theoretically achievable biotechnological intervention that could be designed to strengthen and maintain love in romantic relationships. We investigated laypeople's resistance to the use of such technologies and its sources. Across two studies (Study 1, French and Peruvian university students, N after exclusion = 186; Study 2, Amazon Mechanical Turk sample, N after exclusion = 693, pre-registered), we found that the use of love drugs designed to strengthen and maintain love in romantic relationships are considered as more morally problematic than psychological therapy with the same aim...

OBJECTIVE: Brain areas implicated in semantic memory can be damaged in patients with epilepsy (PWE). However, it is challenging to delineate semantic processing deficits from acoustic, linguistic, and other verbal aspects in current neuropsychological assessments. We developed a new Visual-based Semantic Association Task (ViSAT) to evaluate nonverbal semantic processing in PWE. METHOD: The ViSAT was adapted from similar predecessors (Pyramids & Palm Trees test, PPT; Camels & Cactus Test, CCT) comprised of 100 unique trials using real-life color pictures that avoid demographic, cultural, and other potential confounds...

BACKGROUND: Knowing the questions and concerns that patients have regarding treatment options for lateral epicondylitis may allow for shared-decision making and potentially superior patient outcomes and satisfaction. In the present study, we aimed to further delineate patient preferences with treatment of lateral epicondylitis. METHODS: An online, survey-based, descriptive study was conducted through Amazon Mechanical Turk. Survey participants were presented with a clinical scenario regarding lateral epicondylitis and asked four questions regarding treatment preferences for nonoperative treatment, whether they would consider platelet-rich plasma (PRP) injection, and whether they would consider surgical intervention for recalcitrant symptoms...

PURPOSE: Effective visual perceptual processing is one of the many components of surgical competence. Human face identification is most efficient when viewed upright. However, it is not yet clear how this perception sensitivity impacts eyelid symmetry. This study investigates surgeons' and laypeople's accuracy and efficiency in perceiving eyelid asymmetry from different spatial perspectives. METHODS: A prospective psychometric experiment was conducted where oculoplastic surgeons were recruited from the American Society of Ophthalmic Plastic and Reconstructive Surgery and the Brazilian Oculoplastic Surgery Society, and control participants were recruited via crowdsourcing (Amazon's Mechanical Turk)...

BACKGROUND: The role of altruism in the acceptance of novel preventive healthcare technologies like vaccines has not been thoroughly elucidated. METHODS: We 1:1 randomized n = 2004 Amazon Mechanical Turk (MTurk) participants residing in the USA into a control or treatment arm with vaccination decisions framed altruistically, to elicit their preferences for COVID-19 vaccination using web-based discrete choice experiments. We used conditional and mixed logit models to estimate the impact of framing decisions in terms of altruism on vaccination acceptance...

BACKGROUND: The recent proposed alterations to the Centers for Medicare and Medicaid Services regulations, although subsequently reversed on August 21, 2023, have engendered persistent concerns regarding the impact of insurance policies on breast reconstruction procedures coverage. This study aimed to identify factors that would influence women's preferences regarding autologous breast reconstruction to better understand the possible consequences of these coverage changes. METHODS: A survey of adult women in the United States was conducted via Amazon Mechanical Turk to assess patient preferences for breast reconstruction options, specifically deep inferior epigastric perforator (DIEP) and transverse rectus abdominis myocutaneous (TRAM) flap surgery...

The goal of this research is to investigate the relationship among food healthiness, trust, and the intention to reuse food delivery apps. Another purpose of this work is to examine the moderating effect of eco-friendly food packaging on the association between food healthiness and trust in food delivery apps. A survey was the main instrument for this work, with Amazon Mechanical Turk being used to collect the relevant data, resulting in a total of 343 observations. PROCESS model 7 was employed to test the research hypotheses...

OBJECTIVE: Relighting, i.e., extinguishing, saving, and later relighting and smoking unfinished cigarettes, appears prevalent, may be associated with nicotine dependence and negative health outcomes, yet is poorly understood. We estimate the prevalence, frequency, correlates of, and reasons for, cigarette relighting. METHODS: Survey respondents (n=676) were 18-45-year-old US-based Amazon Mechanical Turk (MTurk) participants who smoked cigarettes every/some days...

Gambling is common in the US, yet nearly one in three players experience gambling-related problems. Using Self-Determination Theory, this study explores how three causality orientations-autonomous, controlled, and impersonal-affect the severity of problem gambling. The study further investigates the mediating roles of nonattachment, dispositional greed, and anhedonia to illuminate how these orientations relate to problem gambling. The data from 675 participants (59% male; Mean age = 40.4 years, SD = 12...

BACKGROUND: Before and after (B&A) photographs are a sensitive part of patients' medical records, and the use of smartphones may pose risks to confidentiality and comfort. The purpose of this study was to assess patient comfort depending on the circumstances under which these photographs being taken. METHODS: Amazon's Mechanical Turk crowdsourcing service and REDCap's survey manager were used to recruit survey participants. An anonymous survey was distributed to ascertain demographics and comfort in various B&A scenarios using a five-point Likert scale...

With the rapid spread of information via social media, individuals are prone to misinformation exposure that they may utilize when forming beliefs. Over five experiments (total N = 815 adults, recruited through Amazon Mechanical Turk in the United States), we investigated whether people could ignore quantitative information when they judged for themselves that it was misreported. Participants recruited online viewed sets of values sampled from Gaussian distributions to estimate the underlying means. They attempted to ignore invalid information, which were outlier values inserted into the value sequences...

In response to Webb and Tangney (2022) we call into question the conclusion that data collected on Amazon's Mechanical Turk (MTurk) was "at best-only 2.6% valid" (p. 1). We suggest that Webb and Tangney made certain choices during the study-design and data-collection process that adversely affected the quality of the data collected. As a result, the anecdotal experience of these authors provides weak evidence that MTurk provides low-quality data as implied. In our commentary we highlight best practice recommendations and make suggestions for more effectively collecting and screening online panel data...

BACKGROUND AND OBJECTIVES: Attentional hypervigilance to threat in posttraumatic stress disorder (PTSD) is an important topic to investigate. Efforts to leverage attention training to prevent PTSD have been promising but underlying mechanisms have not been fully elucidated. The current study tested whether Attention Bias Modification (ABM) prior to an emotion induction of fear could reduce self-reported fear and arousal compared to two control conditions. METHODS: Participants (N = 86) were recruited from Amazon Mechanical Turk and randomized to receive either (1) ABM where they were directed towards fear related words on every trial; (2) Attention Control Training (ACT) where they were directed towards fear related words on 50% of trials; or (3) Neutral training where all words were neutral...

Schizoid personality pathology is among the most debilitating and enigmatic forms of personality pathology. Some have suggested that a potential etiological influence on schizoid pathology is trauma. Thus far, research on the association between trauma and schizoid pathology has focused primarily on type of trauma (e.g., abuse vs. neglect during childhood) rather than who perpetrated the trauma. This contrasts with recent research on trauma perpetrated by someone upon whom the survivor relies and/or trusts (i...

BACKGROUND: Delusional thoughts such as paranoia and conspiratorial thinking reflect beliefs in others' intentions to do harm. Given the integral role of harm evaluation in moral cognition, a better understanding of how psychosis-prone individuals process others' moral characters may provide insights into social cognitive mechanisms of these types of delusions. METHODS: An online sample of 293 participants was drawn from the general population, using Amazon Mechanical Turk...

As ongoing, sporadic outbreaks of hepatitis A virus (HAV) infections present public health challenges, it is critical to understand public perceptions about HAV, especially regarding vaccination. This study examines whether message framing changes the intention to vaccinate against HAV and self-reported vaccine behavior. Using a randomized controlled trial (N = 472) in February 2019 via Amazon Mechanical Turk, participants were randomized to one of four HAV vaccination message groups or a no-message control group...

Our primary aim was to gain a better understanding of how leisure activities (i.e., physical activity, mindfulness, and vacation) may beneficially relate to workaholism and work stress. Secondary aims included exploring motivations for participating in the three types of leisure activities. The job demands-resources theory; conservation of resources theory; and detachment-recovery, autonomy, mastery, meaning, and affiliation model provided context for hypothesized relationships among the variables. Full-time employees in the United States ( N = 367) were recruited via Amazon's Mechanical Turk community, and they completed an online survey...

There is an established association between posttrauma symptom severity (PTSS) and attachment insecurity (anxiety and avoidance). However, few studies have examined this association among community samples of trauma-exposed individuals and identified factors that might moderate these associations. We sought to (a) replicate existing associations between PTSS and attachment insecurity in a community sample of trauma survivors and (b) determine the potential moderating role of support-seeking and coping behaviors...

BACKGROUND: Mental images of feared events are overactive and intrusive in generalized anxiety disorder (GAD). Imagery rescripting involves integration of positive or neutral imagery and corrective information into images to facilitate emotional processing, reduce imagery intrusions, and re-structure underlying schema. Yet only one known study has applied the technique to treatment of worry. The present study aimed first to examine the relationship between trait worry and properties of future-oriented worry images, and second to examine the efficacy of a self-guided imagery rescripting intervention in improving individuals' response to their worries...

Public participation in precision medicine (PM) research is essential to achieving effective health care but has been impeded by a lack of awareness and basic knowledge. There is a critical need for educational materials that can clearly explain PM to foster involvement. This randomized controlled trial with a posttest-only control group design aims to assess the effects of educational messages delivered through animations relative to live-action videos and leaflets on intentions of involvement in PM research...