Experimental Research Method

Running head: RESEARCH ETHICS
Research ethics
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1RESEARCH ETHICS
Task 1
Experimental research method is a type of research design in which certain variables
are kept constant and certain variables are measured. In this study designs, variables are
manipulated as per the judgment of researchers and the random assignment of conditions take
place. Experimental research design is useful in getting idea about cause and effect. In
contrast, non experimental research designs are descriptive in nature where relationship
between two or more research variables is explored. In this case, no manipulation in research
variable is done and no experimental changes are done. Quasi experimental research designs,
true experimental research designs and pre-test post-test research designs are some example
of experimental research design (LoBiondo-Wood & Haber, 2017). Hence, in experimental
designs, predictor variables or group of subjects can be manipulated, whereas in non
experimental design, no manipulations or controls can be applied.
For example, the study by O’Donoghue et al. (2016) used quasi-experimental research
design by exploring the effect of a multifaceted educational intervention on hand hygiene
compliance was explored. The experimental condition for the study was multifaceted
education intervention and compliance to hand washing was explored before and after the
intervention. In this case, cause and effect relationship can be easily explored. The example
of non-experimental research design includes simple qualitative research like the study by
Erasmus et al. (2009) which explored the reasons for poor hand hygiene among hospital
workers. In this study, the reason was explored without using any specific condition
introduced by the researcher.
Task# 2
Sampling theory is the field of theory that involves study of the data collection and
analysis methods gathered from random samples from a study. Such theory mainly aims to