| Popis: |
Building on prior work by Eryn Newman and collaborators, this study assesses effects of exposure to related but non-probative photos on judgments of the truth of trivia statements, In the procedure used in prior work, subjects judge the truth of statements (e.g., "The liquid metal inside a thermometer is magnesium") that are presented with or without a photo that is related to but does not display the answer to the statement (e.g., a photo of a thermometer). Compared to a no-photo control, related photos tend to produce a truthiness effect, increasing "True" responses to both true and false statements. In the fall of 2019, Hartmut Blank and Steve Lindsay came up with the idea of a two-phase procedure. This arose from a discussion about potentially applying an "enlightenment"-type manipulation (see e.g., https://link.springer.com/article/10.3758/s13423-018-1541-7) in this context. They speculated that such a manipulation might eliminate the truthiness effect observed in the standard 1-phase procedure (in which the photo/no photo manipulation is applied when participants are making the truth judgments, and is therefore highly salient), whereas a 2-phase procedure---in which any effect of photos on truth judgments must occur via memory---might produce a truthiness bias sufficiently large to survive enlightenment. In Phase 1 of this 2-phase procedure, subjects read trivia statements with or without related but non-probative photos. After a brief filler task, in Phase 2, subjects see the same trivia statements without photos and judge their truth. As of late November 2021, we have conducted 3 rounds of pilot testing to fine-tune the procedure and the item set. This registration is for the final version of the project, in which one group of participants will be administered the 2-phase procedure mentioned above and another group will complete the standard 1-phase version with the same set of items. |
