Understanding "Why:" How Implicit Questions Shape Explanation Preferences

Adults' learning of complex explanations violates their intuitions about optimal explanatory order

Should you first teach about the purpose of a microwave or about how it heats food? Adults strongly prefer explanations to present function before mechanism and information about a whole to precede information about its component parts. Here we replicate those preferences (Study 1). Using the same stimuli, we then ask whether those pedagogical preferences reflect ease of learning of labels, function, or mechanism. Surprisingly, explanations that accord with function-before-mechanism and whole-before-part structure show no learning benefits to participants compared to other participants who see lessons that violate one or both intuitions (Study 2). Even when potential scaffolds are removed (i.e., diagrams) the preferred pedagogical order does not predict better learning (Study 3). Finally, explanatory order has only modest effects on experiential outcomes (e.g., curiosity, frustration; Study 4). In all cases, all orders of presentation support learning in comparison to controls and are not constrained by either ceiling or floor effects. Reasons for the clash between intuitions about learning and actual outcomes are explored.

A right way to explain? Function, mechanism, and the order of explanations

People generally prefer functional explanations over mechanistic ones. This preference might arise from attributing greater value to functional information. However, instead of an overall preference for functional explanations, people might simply expect functional information to precede mechanistic information. Here, we ask whether people have such preferences for the order of functional and mechanistic information in explanations and how those preferences might arise. In a first set of studies, we show that adults do in fact prefer functional information to precede mechanistic. In a second set of studies, we show that people have a more general preference for explanations to address the whole before parts. Finally, we show that the preference for function to precede mechanism may be related to the broader whole-before-parts preference.

Intuitive biological thinking in Chinese 8th graders

People spontaneously engage in systematic ways of thinking about biology such as human exceptionalism (the tendency of viewing human species as separate from nonhuman species), essentialism (the tendency of assuming category membership as determined by an underlying essence), and teleology (the tendency of seeing purpose as the cause). However, with the majority of past research drawn on Western samples, little is known about whether various types of intuitive biological thinking apply to non-Western contexts. To better understand the nature and cultural prevalence of intuitive biological thinking, we measured essentialist, teleological, and human exceptionalist thinking in a group of Chinese 8th graders. Results demonstrated the presence of all three types of intuitive biological thinking in Chinese middle schoolers, and comparisons with previously published data on U.S. 8th graders showed consistently less human exceptionalism and slightly higher essentialist thinking in China. As such, the current results highlight the prevalence of intuitive biological thinking in an East Asian sample while addressing the potential role of cultural inputs in shaping the way such thinking manifests.