A Research Study on a Group of Children with Autism

question 202

Multiple Choice

A research study on a group of children with autism will compare treatment delivered by parents at home to treatment delivered by teachers at school. If the study finds that the treatment delivered at school is more effective, which item is the BEST example of a confounding variable?

• A) the treatment
• B) the children
• C) the diagnosis
• D) differences between the parents and teachers

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Definitions:

Chemicals Storage

The practice of safely keeping chemicals in appropriate conditions to prevent accidents and preserve their quality.

Respiratory Infections

Illnesses that affect the lungs and other parts of the respiratory system, caused by viruses, bacteria, or other pathogens.

Cilia

Microscopic, hair-like structures on the surface of cells that move in a wave-like pattern to transport substances across cellular surfaces or provide locomotion.

Flagella

Long, whip-like appendages that protrude from the cell body of certain cells, used by the cells to move or to sense changes in their environment.