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<p><strong>Original citation.</strong> Vul, E., Nieuwenstein, M., & Kanwisher, N. (2008). Temporal selection is suppressed, delayed, and diffused during the attentional blink. Psychological Science, 19(1), 55-61.</p> <p><strong>Target of replication.</strong> Target for replication are significant main effects of efficacy, latency and precision in an attentional blink task, as well as their three-way interaction: F(18, 660) = 16.31, p &lt; .00001 (Study 1). A priori replication criteria. The replication study should be considered successful if we find the same main effects as well as the three-way interaction effect between efficacy, latency and precision. </p> <p><strong>Materials, Data, and Report.</strong> Study materials can be found in the materials component of this project. Raw data and the analysis script can be found in the dataset node. The full report and other materials appear in the files section of this node.</p> <p><strong>Conclusions.</strong> All main effects for efficacy, latency and precision were found significant as well as their three-way interaction: F(18, 660) = 12.98, p &lt; .00001. The analysis confirms the original effects observed by Vul and colleagues (2008), namely that selection is (a) suppressed (efficacy), (b) delayed (latency), and (c) diffused (precision) in time during the attentional blink as demonstrated significant main effects of each of these factors and by a significant three way interaction between SOA, measure (efficacy, latency, precision). While there are subtle differences in the specific results for the effects of suppression, delay and diffusion, the overall pattern of results is essentially the same between the original and replicated results. In sum the results from the original study by Vul et al (2008) were successfully replicated.</p> <p><strong>Other notes:</strong> <strong>10/23/2012 -</strong> Node initiated, original paper uploaded. To date the original author responded positively and sent all relevant materials. Original computer hardware has been sourced. Effect size not originally reported by the authors. All effects are at p &lt; .0001 with n=12. From data acquired from the authors and analyzed: Three way interaction (SOA, measure, target), partial eta^2 = .308, observed power = 1.000, R^2 = .765 (.744 adj), Cohen's d = 1.334. 5 participants are required to achieve 95% power. Hardware has been configured with drivers which can accomodate required refresh rate of 150Hz. Original resolution of 1024 x 768 not possible. Will consult with original authors.</p> <p><strong>3/21/2013 -</strong> Ethics approval received. Original authors agree that it is okay to run experiment with 800 x 600 resolution. OSF reviewer agrees with this assessment. Original authors concerned that running only 5 participants might be a problem because the task is very difficult and requires sustained attention. 12 participants will be run (same as original study). Participants who cannot reasonably perform during practice trials will be screened out. Materials uploaded today to this node. Study ready for participant recruitment.</p> <p><strong>4/5/2013 -</strong> Report on a successful replication of the Vul et al paper is complete. </p> <p><strong>7/5/2013 -</strong> Report uploaded in pdf format.</p> <p><strong>11/6/2013 -</strong> Corrected all files to be made public. Effect size calculated: Original: partial eta^2 = .308, observed power = 1.000, R^2 = .765 (.744 adj), Cohen's d = 1.334. Replication: partial eta^2 = .261, observed power = 1.000, R^2 = .741 (.718 adj), Cohen's d = 1.189.</p>
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