A quantitative research approach is suitable for studying which of the following?

A quantitative research approach is particularly suitable for studying the effects of sleep deprivation on wound healing due to its focus on measurable outcomes and statistical analysis. This type of research often involves formulating hypotheses that can be tested through controlled experiments or observational studies. In this case, researchers can quantify aspects such as the rate of wound healing, the degree of sleep deprivation, and correlate these variables to ascertain strength and significance.

Quantitative research typically relies on numeric data, which allows for systematic collection and analysis, helping in establishing causal relationships. For example, one might measure wound healing times in patients with varying amounts of sleep deprivation and analyze whether there is a statistically significant difference in outcomes based on the duration or quality of sleep.

In contrast, the other options primarily delve into subjective experiences and perceptions, which are better suited to qualitative research methods. Client satisfaction, feelings about healthcare providers, and perceptions of pain involve personal experiences and emotional responses that are less easily quantifiable and often require more nuanced exploration.