Because if whatever test you're using doesn't produce the same results for the same person each time (or approximately, depending on the type of test) then how do you know whether the test you are using is any good? (i.e., it's not reliable). For example, if 100 pregnant women took a pregnancy test and it showed positive 50% of the time and negative 50% of the time (i.e., it was unreliable) then how would you be able to trust the reading it gave you when you took it to see if you were pregnant?
bias
When doing experimental research, it is important to limit
Reliability is very important to research because it tells us (based on results obtained each time) whether or not there is a problem with your research, proves or disproves your hypothesis (insufficient evidence to suggest hypothesis is correct) concluding that reliability is low. Also, if a research is reliable it can be used as scientific evidence.
the types of quantitative research are,experimental,non-experimental and quasi-experimental,research.
Experimental Lung Research was created in 1980.
Experimental Cell Research was created in 1950.
Test a hypothesis
how to distinguish between quasi-experimental and nonexperimental research
how does experimental research differ importantly from correlational research methods Correlational Research are predictions and are mostly based on statistics. Whereas Experimental Research is based on experiment and explaination.
being able to duplicate the research
being able to duplicate the research
Some research methods include:Case Study MethodSurvey MethodNaturalistic Observation MethodThe Clinical MethodCor relational Method