A researcher conducts a study to examine possible contributors to glycemic control in a group of subjects who have type 2 diabetes mellitus in a local community.A convenience sample of patients includes patients from 28 to 65 years old who range in weight from normal to obese,with time since diagnosis ranging from several months to several years.To determine causality in this study,the researcher will
A) discuss outcomes in terms of the probability that education will improve glycemic control.
B) increase the manipulation of the independent variable to allow greater control by the researcher.
C) identify multicausal variables that may influence the outcome of glycemic control measures.
D) limit the study to younger persons only to minimize the effects of extraneous variables.

Question

Quizplus · Accepted Answer

Multicausality is the presence of multiple causes for an effect.In this study,patient age,weight,and length of time of diagnosis may all influence the outcome and should be addressed as factors that may alter the results.Probability addresses relative and not absolute causality and may be used when given effects are not produced consistently.In this case,increasing the manipulation of the independent variable does not alter the influence of multiple causes.Limiting the study to patients of a certain age only controls for one extraneous variable.

A Researcher Conducts a Study to Examine Possible Contributors to Glycemic