A replication study examining staffing levels, using a quantitative methodological approach and correlational research
design to determine the strengths of the relationships between these same variables and patient satisfaction, would further clarify the hypothesis pronounced in this study.
These practices and predictors were identified through a review of experimental and correlational research
using quality indicator checklists for group (Gersten et al., 2005), single subject (Homer et al., 2005), and correlational research
(Thompson et al., 2005).
First, the study uses correlational research
design with cross-sectional data.
First, there are inherent limitations in a correlational research
design, because other extraneous factors may have influenced the participants and may have contributed to the actual cause(s).
suggests that student engagement in the arts is associated with enhanced student achievement.
I was surprised to see in Science News, conclusions about causation made on the basis of correlational research
("Keep on Going: Busy seniors live longer, more proof that it pays to stay active" SN: 7/15/06, p.
In addition to this correlational research
, a number of studies have explored the relationship of spirituality, religion, and career development qualitatively.
This cannot be accomplished with most correlational research
investigates relationships between two variables, such as height and weight and answers the question, "What is the relationship between--and--?" If two variables have a strong relationship, one of them can be used to predict the other.
Although the results of such correlational research
do not imply causation, Ogunseitan notes, they can offer insights to guide future research.
The present article proposes some quality indicators for evaluating correlational research
in efforts to inform evidence-based practice.