Human meat consumption is associated with a variety of risks to health, animal welfare, sustainability, and the environment (including greenhouse gas emissions and loss of biodiversity), prompting a growing research effort to develop psychological interventions to reduce it and encourage alternative diets. At the same time, although meat consumption remains the majority choice in the UK, its prevalence is declining, with the proportion of vegetarians and vegans increasing substantially over the last two decades.

 

One potential tool to accelerate behaviour change is to expose people to “dynamic norm” messaging, which, rather than providing static descriptive information about the prevalence of a desired behaviour, emphasises how the desired behaviour is changing over time so that people can begin to conform to the emerging trend. Although promising in theory, previous research offers mixed evidence on the effectiveness of dynamic norms in encouraging a reduction in meat consumption, with some studies suggesting benefits and others showing no effect or even counterproductive effects. The methodological rigour of some studies is also in question.

 

In the present study, Aldoh et al. (2023) investigated the effectiveness of dynamic norm information (compared to static norms) on several indicators of meat consumption, including interest, attitudes, and intentions toward reducing meat consumption, as well as self-reported meat consumption itself. Using an online sample of ~1500 participants, the authors also tested the role of visual cues (including data trend graphics) in causing any effects and explored the potential longevity of the intervention over a period of 7 days. Results revealed moderate evidence for no net effect of dynamic (compared to static) norm information on meat consumption outcomes, nor any positive change over the 7-day period. However, the addition of visual cues enhanced the effect of dynamic norm messages, suggesting potential avenues for increasing the potency of future messaging interventions.

 

The Stage 2 manuscript was evaluated over one round of in-depth review, following which the recommender judged that the manuscript met the Stage 2 criteria and awarded a positive recommendation.

 

 

Level of bias control achieved: Level 6. No part of the data or evidence that was used to answer the research question was generated until after IPA. 

 

 

  

1. Aldoh, A., Sparks, P. & Harris, P. R. (2023). Communicating dynamic norm information [Stage 2]. Acceptance of Version 1 by Peer Community in Registered Reports. https://doi.org/10.31234/osf.io/tac3j

In a time when open research practices are becoming more widely used to combat questionable research practices (QRPs) in academia, this Registered Report by Pownall and colleagues (2023) empirically investigated the practice of preregistering study plans, which allows us to better understand to what degree such practices increase awareness of QRPs and whether experience with preregistration helps reduce engagement in QRPs. This investigation is timely because results from these kinds of studies are only recently becoming available and the conclusions are providing evidence that open research practices can improve research quality and reliability (e.g., Soderberg et al. 2021, Chambers & Tzavella 2022). The authors crucially focused on the effect of preregistering the undergraduate senior thesis (of psychology students in the UK), which is a key stage in the development of an academic.

 

Pownall and colleagues found that preregistration did not affect attitudes toward QRPs, but it did improve student understanding of open research practices. Using exploratory analyses, they additionally found that those who preregistered were those students who reported that they had more opportunity, motivation, and greater capability. This shows how important it is to incorporate the teaching of open research practices such that students can increase their capability, motivation, and opportunity to pursue such practices, whether it is preregistration or other practices that are better known to reduce QRPs (such as registered reports; Krypotos et al. 2022). 

 

After four rounds of review and revisions, the recommender judged that the manuscript met the Stage 2 criteria and awarded a positive recommendation.

 

URL to the preregistered Stage 1 protocol: https://osf.io/9hjbw

 

Level of bias control achieved: Level 6. No part of the data or evidence that was used to answer the research question was generated until after IPA.

 

 

• Advances in Cognitive Psychology
• Advances in Methods and Practices in Psychological Science
• Cambridge Educational Research e-Journal
• Collabra: Psychology
• Experimental Psychology
• F1000Research
• Meta-Psychology
• Peer Community Journal
• PeerJ
• Royal Society Open Science
• Studia Psychologica
• Swiss Psychology Open

 

 

1. Chambers C. D. & Tzavella, L. (2022). The past, present, and future of Registered Reports. Nature Human Behaviour, 6, 29-42. https://doi.org/10.1038/s41562-021-01193-7

 

2. Krypotos, A. M., Mertens, G., Klugkist, I., & Engelhard, I. M. (2022). Preregistration: Definition, advantages, disadvantages, and how it can help against questionable research practices. In Avoiding Questionable Research Practices in Applied Psychology (pp. 343-357). Cham: Springer International Publishing.

 

3. Pownall, M., Pennington, C. R., Norris, E., Juanchich, M., Smaile, D., Russell, S., Gooch, D., Rhys Evans, T., Persson, S., Mak, M. H. C., Tzavella, L., Monk, R., Gough, T., Benwell, C. S. Y., Elsherif, M., Farran, E., Gallagher-Mitchell, T., Kendrick, L. T., Bahnmueller, J., Nordmann, E., Zaneva, M., Gilligan-Lee, K., Bazhydai, M., Jones, A., Sedgmond, J., Holzleitner, I., Reynolds, J., Moss, J., Farrelly, D., Parker, A. J. & Clark, K. (2023). Evaluating the pedagogical effectiveness of study preregistration in the undergraduate dissertation [Stage 2 Registered Report], acceptance of Version 4 by Peer Community in Registered Reports. https://psyarxiv.com/xg2ah

 

4. Soderberg C. K., Errington T. M., Schiavone S. R., Bottesini J., Thorn F. S., Vazire S., Esterling K. M. & Nosek B. A. (2021) Initial evidence of research quality of registered reports compared with the standard publishing model. Nature Human Behaviour, 5, 990–997. https://doi.org/10.1038/s41562-021-01142-4

The Virtual Maze Task (VMT) is a digital desktop 2D spatial learning task that has been used for research into the effect of sleep and dreaming on memory consolidation (e.g. Wamsley et al, 2010). One limitation of this task has been low rates of reported dream incorporation. Eudave and colleagues (2023) have created an immersive virtual reality (iVR) version of the VMT, which they believe might be more likely to be incorporated into dreams. As an initial step in validating this task for research, they propose a within-subjects study to compare three measures of spatial learning between the 2D desktop and iVR versions. Based on a review of relevant literature, the prediction is that performance will be similar between the two task versions. The planned sample size (n = 62) is sufficient for a .9 power test of equivalence within effect size bounds of d = -.47 to .47. Additional independent variables (gender, perspective-taking ability) and dependent measures (self-reported cybersickness and sense of presence) will be recorded for exploratory analyses.

 

The study plan was refined across four rounds of review, with input from two external reviewers and the recommender, after which it was judged to satisfy the Stage 1 criteria for in-principle acceptance (IPA).†

 

URL to the preregistered Stage 1 protocol: https://osf.io/wba2v
 
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA.
 
List of eligible PCI RR-friendly journals:
 

 

 

Eudave, L., Martínez, M., Valencia, M., & Roth D. (2023). Evaluation of spatial learning and wayfinding in a complex maze using immersive virtual reality. A registered report. In principle acceptance of Version 5 by Peer Community in Registered Reports.

 

Wamsley, E. J., Tucker, M., Payne, J. D., Benavides, J. A., & Stickgold, R. (2010). Dreaming of a learning task is associated with enhanced sleep-dependent memory consolidation. Current Biology, 20, 850–855. https://doi.org/10.1016/j.cub.2010.03.027

 

How does emotion influence item memory (what?) temporal memory (when?) and associative memory (in which context?), and does this differ for younger and older adults? Previous research has found inconsistent results, possibly due to small sample sizes. In this study, Laulan and Rimmele (2024) and will build on the paradigm in Palombo et al. (2021) in which participants see images embedded in videos and are asked to remember the images (what?), their temporal position within the videos (where?), and the association between the images and the videos (in which context?). Image valence (positive vs negative vs neutral) and participant age-group (18-30 vs 60-80 yr olds) are manipulated. Pre-registered analyses will first look at the two age groups separately to test for an effect of valence for each of the memory components, and second test for modulating effects of age-group. To be cost-effective, a sequential analysis approach with statistical analyses conducted at three time points and a maximum sample size of 150 younger and 150 older adults is planned.

 

The Stage 1 manuscript was evaluated over two rounds of in-depth review. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).

 

URL to the preregistered Stage 1 protocol: https://osf.io/ac4rf
 
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA.
 
List of eligible PCI RR-friendly journals:

 

References
 

1. Laulan, P. & Rimmele, U. (2024). The role of positive and negative emotions on multiple components of episodic memory (“what”, “when”, “in which context”) in older compared to young adults: a pre-registered study. In principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/ac4rf

 

2. Palombo, D. J., Te, A. A., Checknita, K. J. & Madan, C. R. (2021). Exploring the Facets of Emotional Episodic Memory: Remembering “What,” “When,” and “Which”. Psychological Science, 32, 1104–1114. https://doi.org/10.1177/0956797621991548

The positive relation between word reading and children’s vocabulary development has been extensively documented. That said, like most research in psychology and the behavioral sciences, the available evidence comes predominantly from majority populations. In the context of language learning, that means monolingual speakers or multilingual speakers where there is close alignment between home and school language learning. But what does the relation between word learning and vocabulary knowledge look like when the learning contexts are discordant?

 

In the current study, Pamei et al. (2024) propose to examine this question by investigating word learning and vocabulary development in two languages, English and Meetei Mayek, among a sample of Grade 3 (approximate age 10), students in Manipur, India. In this context, formal literacy education begins in English rather than in students’ regional home language of Meetei Mayek. This fact provides an innovative context in which to understand how a) whether the relation between word reading and vocabulary looks different in the two languages, and b) whether there is linguistic interdependence between learning in the two languages. This study is poised to bring important underrepresented data that goes beyond the dominant contexts from which our knowledge of language learning has been generated, and thus has the potential to contribute to new lines of empirical and theoretical work that is inclusive of global variations. 

 

The Stage 1 manuscript was evaluated over three rounds of in-depth peer review, the first two consisting of substantial comments from two scholars with relevant expertise, and the third consisting of a close review by the recommender. Based on detailed responses to the reviewers' comments, the recommender judged that the manuscript met the Stage 1 criteria and therefore awarded in-principle acceptance (IPA).

 

URL to the preregistered Stage 1 protocol: https://osf.io/7htv2
 
Level of bias control achieved: Level 6. No part of the data or evidence that will be used to answer the research question yet exists and no part will be generated until after IPA.
 
List of eligible PCI RR-friendly journals:
 

 

 

1. Pamei, G., McBride, C. & Inoue, T. (2024). Reading and vocabulary knowledge in English-Meetei Mayek biliterates. In principle acceptance of Version 3 by Peer Community in Registered Reports. https://osf.io/7htv2