THE KNOBE EFFECT FROM THE PERSPECTIVE OF THOMISTIC ETHICS: THE PROBLEM OF NORMATIVE ORDERS AND COMPETENCES

This article discusses how to interpret the so-called Knobe effect, which refers to the asymmetry in judgments about the intentionality of the side effects caused by one’s actions. The observed tendency is explained through the “moral undertone” of the actions judged. So far, discussions have mostly been held among philosophers in the analytical tradition, who see the theory of morality largely as an ethics of rules. The analysis developed in this article advances the research carried out so far to include teleological ethics, most notably the tradition of Thomistic ethics. Philosophical discussions address the problem of normative orders, focusing in particular on two types of cognition concerned, respectively, with moral judgments and facts. Investigating this issue proves to be helpful not only to explain the Knobe effect, but also to better understand the very notion of an intentional action as employed in the philosophy of action. As a result of this analysis, the Author explains the existing asymmetry in the attribution of intentionality to actions with the respondents’ confusion between cognitive orders. This problem brings us to the issue of normative competences. In analyzing the Knobe effect, normative competences would be responsible for the classification of the data collected and separation of the “purely informative” order from the order of moral judgments, referring to norms or values.

The Problem of ESEE Knowledge

Traditionally it has been thought that the moral valence of a proposition is, strictly speaking, irrelevant to whether someone knows that the proposition is true, and thus irrelevant to the truth-value of a knowledge ascription. On this view, it’s no easier to know, for example, that a bad thing will happen than that a good thing will happen (other things being equal). But a series of very surprising recent experiments suggest that this is actually not how we view knowledge. On the contrary, people are much more willing to ascribe knowledge of a bad outcome. This is known as the epistemic side-effect effect (ESEE), and is a specific instance of a widely documented phenomenon, the side-effect effect (a.k.a. “the Knobe effect”), which is the most famous finding in experimental philosophy. In this paper, I report a new series of five experiments on ESEE, and in the process accomplish three things. First, I confirm earlier findings on the effect. Second, I show that the effect is virtually unlimited. Third, I introduce a new technique for detecting the effect, which potentially enhances its theoretical significance. In particular, my findings make it more likely that the effect genuinely reflects the way we think about and ascribe knowledge, rather than being the result of a performance error.

The Knobe Effect with Probable Outcomes and Availability Heuristic Triggers

This paper contributes to the existing philosophical literature on the Knobe Effect (KE) in two main ways: first, this paper disconfirms the KE by showing that the latter does not hold in contexts with probable outcomes; second, this paper shows that KE is strongly sensitive to the availability heuristic bias. In particular, this paper presents two main findings from three empirical tests carried out between 2016 and 2018: the first finding concerns the fact that if the issuer of a decision with consequences on third parties is unlikely to be perceived as unfriendly, then KE is reduced or absent; the second finding regards instead the fact that if an action has two possible outcomes (one likely to obtain with strong intensity and one likely to obtain with less intensity), then KE does not obtain for decisions whose side-effects have limited consequences on third parties.