What does the purpose statement of the study focus on?

The purpose statement of a study is typically focused on outlining the main aim or objective that the researchers are trying to achieve through their investigation. In this case, the correct choice highlights a focus on reducing indwelling catheter usage rates, which indicates a specific goal that the study seeks to address. This aligns with common research objectives that aim to improve patient care and outcomes by minimizing the use of devices that may lead to complications or adverse effects.

A purpose statement centered around reducing indwelling catheter usage rates would likely involve exploring factors that contribute to excessive use, potential barriers to reduction, and possible strategies for improvement. This focus suggests a proactive approach to enhancing clinical practices and patient safety.

The other options represent aspects of catheterization that may be important considerations within a broader study but do not encapsulate the essence of a targeted purpose statement as effectively as the goal of reducing usage rates. For example, determining financial costs or estimating patient satisfaction could serve as supporting elements of research but are not the primary aim of the research effort. Similarly, increasing the duration of catheterization does not align with a quality improvement perspective that seeks to minimize risks associated with prolonged catheter use.