Lena Maria Wollschläger

Universität Bremen | Uni Bremen · High-Profile Area Minds Media Machines

Preference reversals—a decision maker prefers A over B in one situation but B over A in another—demonstrate that human behavior violates invariance assumptions of (utility-based) rational choice theories. In the field of multi-alternative multi-attribute decision-making research, 3 preference reversals received special attention: similarity, attrac...

Preference reversals-a decision maker prefers A over B in one situation but B over A in another-demonstrate that human behavior violates invariance assumptions of (utility-based) rational choice theories. In the field of multi-alternative multi-attribute decision-making research, 3 preference reversals received special attention: similarity, attrac...

The 2N-ary choice tree model, a computational cognitive process model of multi-alternative multi-attribute preferential choice is proposed, revised, tested for its ability to simulate three benchmark context effects and interactions between them, and compared with earlier and more recent theories. The 2N-ary choice tree model assumes that the decis...

A preferential choice paradigm with real consequences (money, loudness of an annoying sound, and waiting time) is proposed and tested in a “psychophysical” experiment with six subjects who made 960 pairwise choices each, 480 under risk and 480 under uncertainty.

Context effects are changes of choice probabilities due to changes of choice set composition. Three such effects, similarity, attraction, and compromise effects, have been originally observed after adding a third alternative to a two-option set. Explaining the three effects simultaneously has become a benchmark for computational cognitive process m...

When choosing between multiple alternatives, people usually do not have ready-made preferences in their mind but rather construct them on the go. The 2N-ary Choice Tree Model (Wollschlaeger & Diederich, 2012) proposes a preference construction process for N choice options from description, which is based on attribute weights, differences between at...

We define the 2N-ary choice tree model for reaction times and choice probabilities in N-alternative preferential choice by specifying a random walk on a 2N-ary tree. It allows for calculation of expected choice response times and expected choice probabilities in closed form and accounts for several preference reversal effects that emerge from the c...

The 2N-ary choice tree model accounts for response times and choice probabilities in multi-alternative preferential choice. It implements pairwise comparison of alternatives on weighted attributes into an information sampling process which, in turn, results in a preference process. The model provides expected choice probabilities and response time...