Katrina is interested in studying the relationship between attention deficit disorder and behavioral problems in school children,but she believes that the students' socioeconomic statuses may affect her results.She studies two groups of children through an intervention treatment and makes sure that all children in both groups are from homes with the same level of income.What technique does Katrina use in this study?
A)matched samples
B)matched pairs
C)random sampling
D)third-variable correlation

Question

Quizplus · Accepted Answer

Katrina uses matched samples technique, where she selects two groups of children with similar socioeconomic statuses to reduce the confounding variable of income level that may affect the relationship between attention deficit disorder and behavioral problems. This technique ensures that any differences found between the two groups are due to the intervention treatment being studied and not due to income level or other confounding variables.

Katrina Is Interested in Studying the Relationship Between Attention Deficit