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Comparing and differentiating the quantitative methods of investigation.

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  1. Introduction.
  2. Surveys.
  3. Experiments.
  4. Content Analysis.
  5. Conclusion.

If information is to be labeled credible then it has to be acquired in nothing less than a scientific way. By saying this, it means that there should be a systematically planned method of obtaining data that begins with finding reliable sources in significant quantity and ends in formulating conclusions. In research, there are basically two types of research methods, the qualitative and the quantitative. The two are different in a number of ways and can be appropriately applicable to certain kinds of studies. Yet despite the wide array of differences, what primarily draws the line between the two is that the variables involved in a quantitative study can be identified and measured while in qualitative, it cannot (Glesne & Peshkin, 1992). Moreover, due to its objectiveness, quantitative research method is usually preferred over the type. Likewise, quantitative research can also take several forms depending on the kind of instrument used. Hence, it is important to understand the similarities and differences between each form just so only the suitable method will be employed in achieving the desired reliable data.

[...] From there, the differences and similarities of these three research methods are laid out. Before this paper is put to end, it is important to provide a clear comparison and contrast among these three. In regards to definition, survey involves making the respondents answer questions. Content analysis, on the other hand, involves scrutinizing the content of any communicative language and coding them accordingly based on certain rules of categorization. Moreover, experiments covers having the researcher control certain variables, which can be done in a laboratory but not at all times. [...]


[...] The response set is somehow dependent in the form of scaling, that is, ?construction of an instrument that associates qualitative constructs with quantitative metric units? (Trochim, 2006). Mostly used in social research, three main kinds of scaling are Thurstone or Equal- Appearing Interval Scaling, Likert or ?Summative? Scaling and Guttman or ?Cumulative scaling. Note that each of these scales is named after their inventors. First, the construction of the Thurstone Scale starts with formulating statements regarding a particular variable then asking each different people to rate the statements from 1-11 based on how much they perceive the statements to be referring to the variable. [...]


[...] As described earlier, the essence of test-retest method is that the respondent should get the same score on the first and the second test (Colosi, 1997). This is ensured by waiting for a certain period of time before conducting the second test. If the score is the same for the two tests, their correlation should at least be high (Colosi, 1997). The second means of measuring reliability is through internal consistency, which is done by ?grouping questions in a questionnaire that measure the same concept? (Colosi, 1997). [...]

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