Among primates, the human female life cycle appears special. Aspects of these life cycles have been linked to the acquisition and distribution of resources and to environmental factors, as well as to individual differences across human females. Many questions remain regarding the causal roles that these (or also other) factors might have played in the evolution of human female life cycles – and also whether generalizing statements about these life cycles can adequately capture the wide range of the observed phenomena.

 

In the current study, Varas Enriquez et al. (2024) outline a plan for an agent-based model approach to study the factors that guide and channel variability in female life cycles in humans (within biological constraints), via the effects that their model will capture. The authors’ model has a particular eye towards the effects of resource dynamics (resource production and resource transfers) and environmental conditions – and their interplay. The results of this agent based model will be thoroughly analysed to better understand the evolution of the specific female human life cycle range.

 

The study plan was refined after one round of review, which led to input from two external reviewers and the recommender. The revised (second) version was judged to satisfy the Stage 1 criteria for in-principle acceptance.

 

URL to the preregistered Stage 1 protocol: https://osf.io/24c7z
 
Level of bias control achieved: Level 2. At least some data/evidence that will be used to answer the research question has been accessed and partially observed by the authors, but the authors certify that they have not yet observed the key variables within the data that will be used to answer the research question AND they have taken additional steps to maximise bias control and rigour (e.g. conservative statistical threshold; recruitment of a blinded analyst; robustness testing, multiverse/specification analysis, or other approach)
 
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Varas Enríquez, P. J., Lukas, D., Colleran, H, Mulder, M. B., & Redhead, D. (2024) The role of resource dynamics in the distribution of life cycles within a female human population. In principle acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/24c7z

This Stage 1 registered report by Szecsi et al. (2024) seeks to clarify whether individuals' economic conditions moderate how scarcity cues affect their attentional performance. This idea has been previously explored: Here, the authors aim to clarify understanding of the how scarcity cues affect cognition by studying a large and diverse Hungarian sample with improved experimental methods.

 

Specifically, while it has been previously reported that financially less well-off individuals' are differentially affected by finance-related stimuli (e.g. Shah et al., 2018), Szecsi et al. (2024) argue that prior studies have used small samples with insufficient consideration of potentially important demographic variables. Therefore, the generalizability of prior studies might be lacking.

 

Second, Szecsi et al. (2024) aim to conduct a more realistic experiment by asking participants to free-associate in response to financial scarcity-related cues, whereas prior studies have often focused on simply querying for rating responses, which might not sufficiently engage the related cognitive mechanisms that could be most affected.

 

In the proposed study, then, the authors will rigorously test whether financially less well-off individuals have lower attentional performance while experiencing scarcity-related cues than individuals who are financially better off, and that attentional performance does not differ while experiencing non-scarcity related cues. Ultimately, Szecsi et al. propose to shed light on theories of scarcity-related cognition that posit overall decrements in attentional performance irrespective of individuals' financial status.

 

The Stage 1 manuscript was initially reviewed by two experts in the area, who both recommended several improvements to the study. The authors then thoroughly revised their write-up and protocol, and the two reviewers were satisfied with the substance of these revisions. Based on these evaluations, the recommender judged that the Stage 1 criteria were met and awarded in-principle acceptance. There were remaining editorial clarifications and suggestions which the authors can incorporate in their eventual Stage 2 report.

 

URL to the preregistered Stage 1 protocol: https://osf.io/3zdyb
 
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:
 

• Advances in Cognitive Psychology
• Collabra: Psychology
• Experimental Psychology
• Journal of Cognition
• Peer Community Journal
• PeerJ
• Psychology of Consciousness: Theory, Research, and Practice
• Royal Society Open Science
• Studia Psychologica
• Swiss Psychology Open

 

 

1. Shah, A. K., Zhao, J., Mullainathan, S., & Shafir, E. (2018). Money in the mental lives of the poor. Social Cognition, 36, 4-19. https://doi.org/10.1521/soco.2018.36.1.4

 

2. Szecsi, P., Bognar, M., & Szaszi, B., (2024). Do Scarcity-Related Cues Affect the Sustained Attentional Performance of the Poor and the Rich Differently? In principle acceptance of Version 2 by Peer Community in Registered Reports. https://osf.io/3zdyb

Many products that can impact upon health and wellbeing (e.g., alcohol, food) relay information to consumers about the potential risks. However, such information is commonly provided in suboptimal format for gambling-related products. To encourage safer gambling, research has therefore recommended that information about the average loss from a gambling product (“house edge”) or percentage payout (“return-to-player”) should be communicated, with the former translating to better perceived understanding by gamblers. This Registered Report aimed to experimentally compare two phrasings of the house edge against a control return-to-player to arrive at the most effective phrasing to aid gambler’s perceived chances of winning and their factual understanding of the statistical outcomes of their bet. Using a hypothetical gambling scenario, a sample of 3,333 UK-based online gamblers received one of three phrasings: an original house-edge (“his game keeps 10% of all money bet on average”), an alternative house-edge (“on average this game is programmed to cost you 10% of your stake on each bet”) or return-to-player (“this game has an average percentage payout of 90%”). Two outcome measures were employed to judge the effectiveness of this information: gamblers’ perceived changes of winning and factual understanding. The findings indicate that the two-house edge formats were more effective in communicating gambling-related harms than the return-to-player format, but the original house edge phrasing appeared to be the most optimal as it decreased gambler’s perceived chances of winning and increased their factual understanding compared to return-to-player. These results can therefore inform public health policies to reduce gambling-related harm by presenting the most effective communication of gambling risk.

 

After two in-depth reviews, 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/5npy9
 
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. 
 
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References
  
1. Newall, P. W. S., James, R. J. E. & Maynard, O. M. (2023). How does the phrasing of house edge information affect gamblers’ perceptions and level of understanding? A Registered Report. Acceptance of Version 2 by Peer Community in Registered Reports. https://doi.org/10.31234/osf.io/pfnzd

Different disciplines and research areas that rely on participants’ self-reports to accrue data on participants’ true preferences are faced with the question to what extent the former can be equated with the latter. Using monetary incentivisation for study participation may influence this relationship, and researchers, especially in economics, have been discussing how to develop and implement incentive-compatible research designs, i.e., those in which the incentivisation yields the best payoff for the participant if they report their true preferences (Hertwig & Ortmann, 2011; Baillon, 2017). The Bayesian Truth Serum, first introduced by Prelec (2004), according to which participants are rewarded based on how surprisingly common their own answers are relative to the actual distribution of answers, has been proposed as a possible incentive-compatible design for survey studies that rely on participants’ self-reports about their true preferences (Schoenegger, 2021).

 

In this study, Schoenegger and Verheyen (2022) ran a replication of the study by Schoenegger (2021) and assessed whether the effect elicited by the manipulations known as the Bayesian Truth Serum is distinct from its separate constituent parts. The authors report that the manipulation did not yield a significant difference compared to control conditions, which they interpret as a failure to replicate the original results. At the same time, the authors are careful in drawing conclusions as to the usefulness of the Bayesian Truth Serum for self-report studies using Likert-scale items in general, as they emphasise that smaller effect sizes may be of interest and that the results may differ when different items are used. 

 

The Stage 2 manuscript was evaluated by two reviewers, one of whom reviewed the first Stage 1 submission, and the other one of whom reviewed the manuscript specifically to assess statistical questions.

 

Following a careful revision by the authors, the recommender judged that the manuscript meets the Stage 2 criteria and awarded a positive recommendation.

 

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

 

Level of bias control achieved: Level 6. No part of the data or evidence that was used to answer the research question existed prior to Stage 1 in-principle acceptance. 

 

 

 

1. Baillon, A. (2017). Bayesian markets to elicit private information. Proceedings of the National Academy of Science, 114(30), 7985-7962. https://doi.org/10.1073/pnas.1703486114

 

2. Hertwig, R. & Ortmann (2001). Experimental practices in economics: a methodlogical challenge for psychologists? Behavioral and Brain Sciences, 24(3), 383-403. https://doi.org/10.1037/e683322011-032

 

3. Prelec, D. (2004). A Bayesian Truth Serum for Subjective Data. Science, 306(5695), 462-466. https://doi.org/10.1126/science.1102081

 

4. Schoenegger, P. (2021). Experimental Philosophy and the Incentivisation Challenge: a Proposed Application of the Bayesian Truth Serum. Review of Philosophy and Psychology https://doi.org/10.1007/s13164-021-00571-4 

 

5. Schoenegger, P., & Verheyen, S. (2022). Taking A Closer Look At The Bayesian Truth Serum: A Registered Report. Stage 2 Registered Report, in principle acceptance of Version 3 by Peer Community in Registered Reports. https://doi.org/10.31219/osf.io/9zvqj

According to the sensory recruitment framework, the visual cortex is at least in part responsible for maintaining information about elementary visual features in visual short term memory. Could an early visual area, constantly taking in new information, really be responsible for holding information for up to a second? But conversely, could higher order regions, such as frontal regions, really hold subtle sensory distinctions? It must be done somewhere. Yet the existing evidence is conflicting. Phylactou et al. seek to address this question by applying transcranial magnetic stimulation (TMS) to disrupt early visual areas at intervals up to a second after stimulus presentation to determine the effect on visual short term memory performance. In this way they will causally influence the sensory cortex at relevant times while tightening up on possible confounds in earlier research.

 

The Stage 1 manuscript was evaluated over two rounds of in-depth review by three expert reviewers. 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).

 

 
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. Phylactou, P., Shimi, A. & Konstantinou, N. (2022). Causal evidence for the role of the sensory visual cortex in visual short-term memory maintenance, in principle acceptance of Version 5 by Peer Community in Registered Reports. https://osf.io/empdt