Effects of Internal Service Quality on Nurses' Performance: Mediating Role of Employees' Well-Being: A Case of Debre Tabor Hospital, Ethiopia

The Invisible Engine Room of Healthcare

Imagine a hospital not just as a place where doctors cure patients, but as a giant, bustling machine. In this machine, the nurses are the star performers, the ones holding the hands of the sick and delivering the care that saves lives. But even the best performers need a backstage crew to keep the show running. This is where a concept called Internal Service Quality (ISQ) comes in. Think of ISQ as the "backstage support" a nurse gets from their own hospital: Are the beds comfortable? Do the supplies arrive on time? Does the boss listen when a nurse is stressed? It's the difference between a musician trying to play a solo with a broken guitar versus one with a perfectly tuned instrument.

Another key player in this story is Employee Well-being. This isn't just about feeling happy; it's the total package of how a person feels physically, mentally, and socially. If a nurse is exhausted, stressed, or feels ignored, their "battery" is low, and they can't perform at their best. Finally, there's Nurses' Performance, which is simply how well they do their job—how safe the care is, how kind they are to patients, and how efficiently they work. Scientists have long wondered: Does fixing the "backstage" (ISQ) actually make the "performers" (nurses) better, and does it do so by first making them feel better (Well-being)? This question matters because when nurses thrive, patients get better care, and the whole healthcare system becomes stronger.

The Study: Tuning the Engine at Debre Tabor Hospital

This research paper takes a deep dive into these questions at Debre Tabor Hospital in Ethiopia. The researchers, a team from Debre Tabor University and Bahir Dar University, wanted to see exactly how the support nurses receive from their hospital affects their work, and whether feeling good is the secret link between the two. They didn't just guess; they asked 177 nurses to fill out surveys, and after cleaning up the data, they analyzed 170 valid responses. To make sense of all these answers, they used a powerful statistical tool called Structural Equation Modeling (SEM), which is like a sophisticated map that shows how different roads (variables) connect to each other.

Here is what they found, broken down into the story of the hospital:

1. The Backstage Support Matters (ISQ → Performance)
The study found a very strong, direct link between Internal Service Quality and how well nurses perform. The data showed a statistical value (beta) of 0.623, which is a huge number in this kind of research. In plain English, this means that when the hospital provides good support—like reliable supplies, clear rules, and a safe environment—nurses immediately get better at their jobs. It's like giving a runner better shoes; they run faster, even if they were already a good runner. The researchers are very sure of this because the result was statistically significant (p < 0.001), meaning it's highly unlikely to be a fluke.

2. The Backstage Support Makes Nurses Feel Better (ISQ → Well-being)
The researchers also discovered that good internal support makes nurses feel happier and healthier. The link here was also strong, with a value of 0.391. When the hospital takes care of its staff, the staff's psychological and physical well-being improves. It's the difference between working in a chaotic, noisy room versus a calm, organized one. The study suggests that when nurses feel supported, their stress goes down, and their job satisfaction goes up.

3. Feeling Better Makes You Work Better (Well-being → Performance)
But does feeling good actually help you work? The answer is yes. The study showed that employee well-being positively influences performance, with a value of 0.184. When nurses are mentally and physically healthy, they are more efficient, make fewer mistakes, and interact better with patients. This confirms that a happy nurse is a productive nurse.

4. The Secret Middleman: Partial Mediation
This is the most interesting part of the story. The researchers asked: Does the hospital help nurses only by making them feel good, or does it help them directly too? The answer is: Both.
The study found that employee well-being acts as a "partial mediator." This means that Internal Service Quality improves performance in two ways:

• Directly: By giving nurses the tools and systems they need (the "shoes").
• Indirectly: By making nurses feel good, which then helps them work better (the "energy").

The indirect path (through well-being) accounted for about 28.3% of the total effect, with an indirect effect value of 0.244. The researchers calculated this using a method called bootstrapping, which gave them a confidence interval of 0.208 to 0.402. Because this range doesn't include zero, they are confident that this "middleman" effect is real. However, it is only a partial mediation, not a full one. This is a crucial detail: it means that even if a nurse feels great, the hospital still needs to provide good tools and systems for them to perform at their absolute best. The well-being is a powerful booster, but it's not the only thing that matters.

5. Who Benefits Most?
The study also looked at the nurses themselves. They found that nurses with 11–15 years of experience and those with a Bachelor's degree tended to have higher levels of well-being and performance. This suggests that experience and education might help nurses navigate the hospital environment better, or perhaps they are in roles where they get more support. The study population was mostly female (57.6%), with the largest groups working in inpatient wards (35.3%) and labor/delivery (32.9%).

What the Study Does NOT Say
It is important to note what this paper does not claim. The researchers did not say that well-being is the only reason nurses perform well; they explicitly ruled out "full mediation," meaning well-being is not the entire story. They also did not claim that this applies to every hospital in the world; their data came from a single hospital, Debre Tabor, so the results might look different elsewhere. Furthermore, because they asked questions at one specific point in time (a cross-sectional study), they cannot prove that one thing caused the other with 100% certainty, though the statistical links are very strong. They also did not explore economic well-being or digital tools in depth, leaving those as questions for future research.

The Takeaway

In the end, this paper tells a clear story for hospital managers and policymakers: You cannot just expect nurses to perform miracles without giving them the right support. Improving the "Internal Service Quality"—making sure the hospital runs smoothly, supplies are ready, and staff are respected—is a direct investment in better patient care. But there's a bonus: this support also makes the nurses feel better, and that feeling good creates a ripple effect that boosts their performance even further. It's a win-win. The study suggests that to get the best out of their nursing staff, hospitals need to fix the machinery and take care of the people running it. As the researchers conclude, investing in these areas is a smart, cost-effective way to improve healthcare, especially in places where resources are tight.