Internet-based language production research with overt articulation: Proof of concept, challenges, and practical advice

Language production experiments with overt articulation have thus far only scarcely been conducted online, mostly due to technical difficulties related to measuring voice onset latencies. Especially the poor audiovisual synchrony in web experiments (Bridges et al. 2020) is a challenge to time-locking stimuli and participants’ spoken responses. We tested the viability of conducting language production experiments with overt articulation in online settings using the picture–word interference paradigm – a classic task in language production research. In three pre-registered experiments (N = 48 each), participants named object pictures while ignoring visually superimposed distractor words. We implemented a custom voice recording option in two different web experiment builders and recorded naming responses in audio files. From these stimulus-locked audio files, we extracted voice onset latencies offline. In a control task, participants classified the last letter of a picture name as a vowel or consonant via button-press, a task that shows comparable semantic interference effects. We expected slower responses when picture and distractor word were semantically related compared to unrelated, independently of task. This semantic interference effect is robust, but relatively small. It should therefore crucially depend on precise timing. We replicated this effect in an online setting, both for button-press and overt naming responses, providing a proof of concept that naming latency – a key dependent variable in language production research – can be reliably measured in online experiments. We discuss challenges for online language production research and suggestions of how to overcome them. The scripts for the online implementation are made available.

Internet based language production research with overt articulation: Proof of concept, challenges, and practical advice

Language production experiments with overt articulation have thus far only scarcely been conducted online, mostly due to technical difficulties related to measuring voice onset latencies. Especially the poor audiovisual synchrony in web experiments (Bridges et al., 2020) is a challenge to time-locking stimuli and participants’ spoken responses. We tested the viability of conducting language production experiments with overt articulation in online settings using the picture-word interference paradigm – a classic task in language production research. In three pre-registered experiments (N=48 each), participants named object pictures while ignoring visually superimposed distractor words. We implemented a custom voice recording option in two different web experiment builders and recorded naming responses in audio files. From these stimulus-locked audio files we extracted voice onset latencies offline. In a control task, participants classified the last letter of a picture name as a vowel or consonant via button-press, a task that shows comparable semantic interference effects. We expected slower responses when picture and distractor word were semantically related compared to unrelated, independently of task. This semantic interference effect is robust, but relatively small. It should therefore crucially depend on precise timing. We replicated this effect in an online setting, both for button-press and overt naming responses, providing a proof of concept that naming latency - a key dependent variable in language production research - can be reliably measured in online experiments. We discuss challenges for online language production research and suggestions how to overcome them. The scripts for the online implementation are made available.

Imaging the Subsurface: How Different Visualizations of Cross-sections Affect the Sense of Uncertainty

Geologists struggle to communicate the uncertainty that arise when mapping and interpreting the geological subsurface. Today, open data sharing policies make new value of geological information possible for a broader user group of non-experts. It is crucial to develop standard methods for visualizing uncertainty to increase the usability of geological information. In this study, a web experiment was set up to analyze whether and how different design choices influence the sense of uncertainty. Also, questions about the intuitiveness of symbols were asked. Two-hundred ten participants from different countries completed the experiment, both experts and non-experts in geology. Traditional visualization techniques in geology, like dashed lines, dotted lines and question mark, were tested. In addition, other visualizations were tested, such as hatched area and variations of symbol size, zoom levels and reference information. The results show that design choices have an impact on the participants’ assessment of uncertainty. The experts inquire about crucial information if it is not present. The results also suggest that when visualizing uncertainty, all the elements in the representation, and specifically the line and area symbols that delineate and colour the features, must work together to make the right impression.

Pictorial health warnings and wear-out effects: evidence from a web experiment in 10 European countries

ObjectiveThis paper examines whether there are possible wear-out effects associated with repeated exposure to pictorial health warnings on tobacco products. Wear-out effects can be general, that is, people get used to the presence of pictorial warnings in general, or specific to the content of the warnings (ie, the images used). Distinguishing between these two types of wear-out is important for understanding how to maintain the effectiveness of health warnings over time.MethodsThis study used data from two surveys carried out in 10 European countries. Participants (n=12 600) were exposed in a random order to a series of health warnings and assessed the salience of the warnings as well as their effects on smoking intentions. Using these data and country variations in health warning legislation, we tested whether warning pictures are subject to general and/or specific wear-out effects.ResultsResponses were stronger to combined text+picture warnings than to text-only warnings. This effect was lower for smokers living in countries where combined warnings were already in place at the time of the data collection, compared with smokers residing in countries where text-only warnings were in use. This result, observed for combined warnings with new pictures, is in line with the presence of general wear-out effects. Combined warnings with an unknown pictorial content were more effective than those including pictorial warnings already in use, suggesting that specific wear-out effects are also at play.ConclusionsThese findings strengthen the evidence that pictorial health warnings are an effective tool for tobacco control policies and suggest that, even in the presence of a general wear-out effect among smokers, periodically introducing new pictures helps to maintain warning effectiveness over time.

Capturing Volunteered Historical Information

Government agencies are adopting a variety of web-based strategies to improve information systems, increase civic engagement, and enhance decision-making capabilities and planning processes. Within the U.S., a university research team designed a municipal web tool called the Austin Historical Survey Wiki to fill a pragmatic need for information about historic resources to be used for long range planning and development review purposes. The authors situate this web experiment in relation to an array of models for government interaction with citizens via data collection efforts and the application of GIS and web-based technologies. This experiment offers local government agencies and practitioners a replicable model for tracking official data and citizen contributions to a GIS. In addition, this research offers insights into potential barriers to and requirements for collaboration between government agencies and citizens online.

Is fast fashion sustainable? The effect of positioning strategies on consumers’ attitudes and purchase intentions

Purpose – The purpose of this study is to examine the strategies that fast fashion retailers use to position sustainability by applying the stimulus-organism-response model. Specifically, this study investigated how sustainability positioning strategies influenced perceived corporate social responsibility (CSR) effort, price value and brand equity. Design/methodology/approach – A between-subject Web experiment was used to test the research model. Four versions of the questionnaire were developed on a commercial online survey Web site, in which the surveys were randomly distributed to participants and data were collected. Findings – The findings of this study suggest that sustainability positioning strategies can lead to the positive perceived CSR effort, thus giving support to the effectiveness of sustainability marketing for fast fashion retailers. Furthermore, purchase intentions are significantly influenced by perceived CSR effort, price value and brand equity. Originality/value – This study provides important input for practitioners by suggesting that they focus their managerial attention to sustainability and should also promote it through their positioning strategies carefully.