Research Paper: Measurements and Instruments

Pages: 5 (1479 words)  ·  Bibliography Sources: 5  ·  Level: Doctorate  ·  Topic: Sociology  ·  Buy This Paper

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[. . .] The strengths and limitations of the measurement instrument you have selected in terms of reliability and validity

The benefit of reputable quantitative data, i.e. data that is gathered meticulously, utilizing the suitable techniques and examined critically, is within its reliability. Nevertheless, the drawback involving quantitative data is usually that it neglects to offer a detailed explanation of the encounter. Understanding how lots of people are impacted as well as their areas doesn't offer adequate details to help agencies and sectors about what they ought to prepare for with regards to response. Understanding why there's an issue and just how individuals are impacted will complement the numbers and places to deliver insight about how best to customize the relief response (White, 2005). The primary advantages of quantitative data gathering have been that it offers:

numeric estimations opportunity for fairly straightforward data evaluation data that are proven data that are comparable amid various communities inside various locations data that does not need logical reasoning beyond contemplation on exactly how information is going to be delivered within the distribution procedure (White, 2005).

Weaknesses built into quantitative data consist of:

gaps in data - problems that are not enclosed within the set of questions, or supplementary information checklist, won't be enclosed within the evaluation a demanding data gathering procedure (White, 2006).

Other limitations consist of: Modifications in times limitations; Modifications in directions; Various scoring processes; Disturbing administration times; Time taken to fill the questionnaire, heat light as well as air flow; Responses of participants to questionnaire; Feelings, exhaustion, mindset, test wiseness; Price; Administrative time frame; Arguments towards content material by parents or other individuals; as well as Replication of testing (Center for Global Development, 2006).

Which scale is appropriate for you to use for your plan and why

For this survey, "Phrase Completion Scales" (PCS) have already been selected because it stands out as the most frequently utilized psychometric scale within social science experiments. PCS is definitely the enhanced form of Likert scale. The scale is actually developed using the question/phrase at the starting and then 11 points following (or beneath) the sentence. Once the participants offer their feedback, the construct is finished. If "zero" is chosen, it suggests that the construct doesn't occur; on the other hand, if "ten" is outlined within the scale, it exhibits the maximum degree of existence (ACAPS, 2012).

A justification of how you know your scale is reliable and valid.

The response categorizations signify an ordinal degree of measuring. Ordinal degree data, nevertheless, differs with regards to how strongly it estimates interval degree data. By employing a mathematical continuum as being the response element rather than emotions that mirror level of acceptance, participants might have the capacity to calibrate their replies in much more equal items.

Appropriate test for your plan and whether it is norm or criterion referenced

The goal of the quantitative study design is always to analyze pre-determined hypotheses as well as create generalizable outcomes. Utilizing statistical techniques of regression, the outcomes of quantitative evaluation can easily validate or oppose hypotheses concerning the influence of the disaster and subsequent requirements of the impacted human population. Regression analysis is going to assist in unraveling the sporadic influence of 1 variable upon some other variable. Because regression analysis is actually utilized to confirm the importance of the connection amid variables, i.e. level of certainty that the connection (obtained from final results) is in close proximity with the projected connection (hypotheses) (ACAPS, 2012).

What population is used for the scale and test?

African-American men who live in an urban setting and exhibit aggressive behavior, aged between 20 and 30.

References

ACAPS. (2012). Qualitative and Quantitative Research Techniques for Humanitarian Needs Assessment -- An Introductory Brief. ACAPS, Better Assessments -- Better Aid

Bouma, G.D. (2004). The research process. 5th ed. Melbourne: Oxford University Press.

Bryman, A. (2004) Social Research Methods (2nd edition). Oxford: Oxford University Press.

Center for Global Development. (2006) 'When will we ever learn? Improving lives through impact evaluation.' Report of the Evaluation Gap Working Group. Washington, D.C.

Saunders, M., Lewis, P. And Thornhill, A (2012). Research methods for business students. 6th ed. London: Prentice Hall.

White, H. (2005) 'Challenges in evaluating development effectiveness'. Working Paper 242, Institute of Development Studies: Brighton.

White, H. (2006). DFID Economists' Manual: Impact Evaluation, Independent Evaluation Group, World Bank,… [END OF PREVIEW]

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