Bias and Modality in Conditionals: Experimental Evidence and Theoretical Implications.

Area of Science:

• Linguistics
• Semantics
• Pragmatics

Background:

• Bias in linguistics is well-studied in questions, but less so in conditionals.
• The concept of "nonveridical equilibrium" posits equal possibilities for p and not-p as a default for epistemic modals, questions, and conditionals.
• Speaker commitment can be manipulated in questions and conditionals to introduce bias.

Purpose of the Study:

• To investigate how specific German modal elements (wirklich, sollte, falls) create bias in conditionals and questions.
• To compare bias effects in different types of German questions (ob-questions) and conditionals (wenn-, falls-, V1-conditionals).
• To contribute to the understanding of bias in conditional constructions.

Main Methods:

• Conducted two experiments involving participant inference tasks.
• Experiment 1 focused on 'sollte'/'wirklich' in 'ob'-questions and 'wenn'-conditionals.
• Experiment 2 examined 'sollte'/'wirklich' in 'wenn'/'falls'/V1-conditionals.

Main Results:

• 'Ob'-questions and 'falls'-conditionals indicate reduced speaker commitment regarding the antecedent proposition compared to 'wenn'-conditionals.
• 'Wenn'-conditionals showed no significant difference in commitment compared to V1-conditionals.
• 'Sollte' and 'wirklich' in the antecedent of conditionals introduce a negative bias towards the antecedent proposition.

Conclusions:

• 'Ob'-questions and 'falls'-conditionals inherently signal lower speaker commitment.
• 'Sollte' and 'wirklich' function as negative bias markers in conditional antecedents.
• This research provides novel insights into bias mechanisms within conditional sentences.