ameliorating= make (something bad or unsatisfactory) better.
studies carried out in the course of an activity or occupation, typically in the field of education, to improve the methods and approach of those involved.
Fundamental research, also known as basic research or pure research does not usually generate findings that have immediate applications in a practical level. Fundamental research is driven by curiosity and the desire to expand knowledge in specific research area.
Applied research refers to scientific study and research that seeks to solve practical problems immediately or near future. This type of research plays an important role in solving everyday problems that often have an impact on life, work, health, and overall well-being.
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time. It is also important to know what variable(s) you want to test and measure.
A very wide definition of experimental research, or a quasi experiment, is research where the scientist actively influences something to observe the consequences. Most experiments tend to fall in between the strict and the wide definition.