A Similarity Heuristic in Children's Possibility Judgments

Area of Science:

• Cognitive Development
• Child Psychology
• Reasoning and Judgment

Background:

• Children often deem strange or improbable events as impossible.
• The underlying cognitive mechanisms for this reasoning are not fully understood.

Purpose of the Study:

• To investigate the mechanisms behind children's judgments of event possibility.
• To provide evidence for the use of a similarity heuristic in young children's reasoning.

Main Methods:

• The study involved 250 children, aged 5 to 6 years.
• Three experiments were conducted to test children's judgments on the possibility of improbable events.
• Children's reasoning was assessed based on their exposure to similar or dissimilar improbable and possible events.

Main Results:

• Children who heard about improbable events judged similar improbable events as possible.
• Children were more likely to affirm the possibility of improbable events when presented with related improbable events.
• Children affirmed the possibility of improbable events related to known events but denied impossible related events.

Conclusions:

• Young children utilize a similarity heuristic to assess event possibility.
• This heuristic involves comparing potential events to similar known events.
• Findings shed light on the developmental trajectory of reasoning about possibility and impossibility in children.