TABLE 11.

Frequency of selecting the correct answer and distractors targeting the misconception that food does not become part of the body (based on six distractors in two items)

	Comparison				THSB
Answer choicea	Pretest	Posttest	χ2 (p value)	Effect size	Pretest	Posttest	χ2 (p value)	Effect size
Atoms from food become part of the body.	60%	74%	15.82	0.15	56%	87%	170.65	0.34
			(<0.001)				(<0.001)
Atoms from food do not become part of the body.	34%	22%	13.39	0.14	37%	11%	144.30	0.31
			(<0.001)				(<0.001)

^aThe correct answer choice is in italics.