Children's failure to control variables may reflect adaptive decision-making.

Area of Science:

• Cognitive Science
• Developmental Psychology
• Science Education

Background:

• Controlling variables is fundamental to scientific experimentation and STEM education.
• Children often struggle to grasp and apply the controlled variable strategy.
• Existing research suggests children's intuitions may conflict with scientific practices.

Purpose of the Study:

• To investigate if children adapt their learning strategies based on perceived causal sparsity.
• To examine children's ability to perform and interpret controlled experiments.
• To understand how children tailor testing strategies in causal learning.

Main Methods:

• Tested 104 children aged 7–13 years.
• Assessed strategy adaptation based on expectations of causal sparsity.
• Analyzed children's performance in controlled experimentation tasks.

Main Results:

• Children demonstrated sensitivity to causal sparsity.
• Participants adapted their testing strategies based on causal sparsity.
• Evidence suggests children can perform and interpret controlled experiments effectively.

Conclusions:

• Children's causal learning skills may be underestimated.
• Young learners can employ adaptive decision-making in scientific experimentation.
• Children's strategies are sensitive to the complexity of causal systems.