In the attached article: Johnston et al. (2012) studied the effect of maternal touch and talk on the distress of infants and toddlers during invasive procedures. Read the article and answer the following questions.

1. What facts did the researchers cite to establish the significanceof the research topic?

1. What was the purpose of the study? Why do this research?

1. What are the independent and dependent variables in this study?

1. Name possible confounding or extraneous or research variables (all the same thing).