| design of study(expression, process, method, technique) |
| diagnostic technique(expression, process, method, technique, research) |
| experimental technique(expression, process, method, technique, research) |
| investigative technique(expression, process, method, technique, research) |
| method of examination(expression, process, method, technique, research) |
| method of research(expression, process, method, technique, research) |
| method of testing(expression, process, method, technique, research) |
| method used to study(expression, process, method, technique, research) |
| mode of inquiry(expression, process, method, technique, research) |
| research approach(expression, process, method, technique, research) |
| research method(expression, process, method, technique, research) |
| research technique(expression, process, method, technique, research) |
| research tool(expression, process, method, technique, research) |
| study method(expression, process, method, technique, research) |
| survey method(expression, process, method, technique, research) |
| survey technique(expression, process, method, technique, research) |
| surveying method(expression, process, method, technique, research) |
| surveying technique(expression, process, method, technique, research) |