Filtern
Volltext vorhanden
- ja (1) (entfernen)
Erscheinungsjahr
- 2017 (1) (entfernen)
Dokumenttyp
- Postprint (1)
Sprache
- Englisch (1)
Gehört zur Bibliographie
- ja (1)
Schlagworte
- heuristics and biases (1)
- mental arithmetic (1)
- mental number line (1)
- numerical cognition (1)
- operational momentum (1)
Institut
- Strukturbereich Kognitionswissenschaften (1) (entfernen)
Mental arithmetic exhibits various biases. Among those is a tendency to overestimate addition and to underestimate subtraction outcomes. Does such “operational momentum” (OM) also affect multiplication and division? Twenty-six adults produced lines whose lengths corresponded to the correct outcomes of multiplication and division problems shown in symbolic format. We found a reliable tendency to over-estimate division outcomes, i.e., reverse OM. We suggest that anchoring on the first operand (a tendency to use this number as a reference for further quantitative reasoning) contributes to cognitive biases in mental arithmetic.