As of June 01, 2026, the average salary for a Research Study Assistant in Missouri is $58,681 per year, which breaks down to an hourly rate of $28.
However, a Research Study Assistant's salary can vary significantly. Here’s a look at the typical salary range:
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Research Study Assistant Salaries by Percentile
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $67,574 | $5,631 | $1,300 | $32 |
| Average | $58,681 | $4,890 | $1,128 | $28 |
| 25th Percentile | $50,573 | $4,214 | $973 | $24 |
Washington University in St. Louis - Saint Louis, MO
Willis Towers Watson - Saint Louis, MO
Apex Focus Group Inc. - Saint Charles, MO
Apex Focus Group Inc. - Independence, MO
A Research Study Assistant's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.
Experience is a primary driver of a Research Study Assistant's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:
| Levels | Salary |
|---|---|
| Staff Nur... Level Research Study Assistant | $89,687 |
| Research ... Level Research Study Assistant | $58,027 |
| Clinical ... Level Research Study Assistant | $67,153 |
| Scientist... Level Research Study Assistant | $95,349 |
| Clinical ... Level Research Study Assistant | $103,024 |
What Am I Worth?
Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Research Study Assistants. For example, consider the average annual salaries in these key locations:
Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:
Understanding how a Research Study Assistant's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.
| Annual Salary | Monthly Pay | Weekly Pay | Hourly Wage | |
|---|---|---|---|---|
| 75th Percentile | $67,574 | $5,631 | $1,300 | $32 |
| Average | $58,681 | $4,890 | $1,128 | $28 |
| 25th Percentile | $50,573 | $4,214 | $973 | $24 |
Ready to take the next step in your career? Browse thousands of current Research Study Assistant job openings on our job board. Use the search bar below to find your perfect match.
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