Replicationis one of the research strategies that make the theory of a researchworthwhile. Replication includes the repetition of a study byemploying the same method of data collection but on differentsubjects or experiments. Replication can also involve the applicationof a theory to different situations in order to developgeneralization and increase the credibility of the results. Forexample, the behavior of students within a college can be compared tostudents in another college. Also, there can be a slight change inother variability on the subject, for example, age or race.Replication assures that the results are reliable, applicable in reallife situation and valid (Kothari, 2005).
Metaanalysis is a systematic review of several studies with an aim ofdeveloping a generalized conclusion. Due to the increased focus ofthe study, accumulated effects as well as an expanded and a morediverse subject, meta analysis results into a stronger and reliablestatistical conclusion. Metal analysis established a more accuratestatistical estimate and significance by providing a more complexdata analysis. The main advantages of meta analysis in researchinclude confirmation of data collected, statistical power andextrapolation of the subject. However, the research methodologyrequires homogeneous studies and requires more advanced statisticalanalysis skills (Kothari, 2005).
Literaturereview is a research methodology that is dependent on published dataand information. The information could be within a specific subjectmater or an expanded subject. Also it can be based on publishedinformation within a particular period of time, say the last fiveyears. It can also be considered as a summary and analysis of studiesthat have been done in a particular subject matter or researchquestion. The literature review synthesis the information andreorganize it to reflect the current research question. However,literature review does not provide any new argument on the subjectmatter (Kothari, 2005).
Kothari,C. R. (2005). Researchmethodology: methods & techniques,New Delhi: New Age International (P) Ltd.