Question

In: Statistics and Probability

How would a researcher go about ensuring reliability and validity?

How would a researcher go about ensuring reliability and validity?

Solutions

Expert Solution

Reliability refers to the extent to which the same answers can be obtained using the same instruments more than one time. In simple terms, if your research is associated with high levels of reliability, then other researchers need to be able to generate the same results, using the same research methods under similar conditions. It is noted that “reliability problems crop up in many forms.

Reliability is a concern every time a single observer is the source of data, because we have no certain guard against the impact of that observer’s subjectivity” (Babbie, 2010, p.158). According to Wilson (2010) reliability issues are most of the time closely associated with subjectivity and once a researcher adopts a subjective approach towards the study, then the level of reliability of the work is going to be compromised.

Validity of research can be explained as an extent at which requirements of scientific research method have been followed during the process of generating research findings. Oliver (2010) considers validity to be a compulsory requirement for all types of studies. There are different forms of research validity and main ones are specified by Cohen et al (2007) as content validity, criterion-related validity, construct validity, internal validity, external validity, concurrent validity and face validity.
Measures to ensure validity of a research include, but not limited to the following points:

a) Appropriate time scale for the study has to be selected;

b) Appropriate methodology has to be chosen, taking into account the characteristics of the study;

c) The most suitable sample method for the study has to be selected;

d) The respondents must not be pressured in any ways to select specific choices among the answer sets.

It is important to understand that although threats to research reliability and validity can never be totally eliminated, however researchers need to strive to minimize this threat as much as possible.


Related Solutions

Reliability vs. Validity -How would you explain the difference between reliability and validity? Which examples would...
Reliability vs. Validity -How would you explain the difference between reliability and validity? Which examples would you use to illustrate the concept? NCSU: Fan Aptitude Test- Suppose this clip demonstrated a serious aptitude test. What would the results of a fan aptitude test reveal to us? Is this a valid test of intelligence? Why or why not? NFL and the Wonderlic Test- Why do employers give job candidates tests like the Wonderlic? How do results on the Wonderlic apply to...
Define reliability & validity, describe and separate the three methods for demonstrating validity. talk about the...
Define reliability & validity, describe and separate the three methods for demonstrating validity. talk about the relationship between validity and reliability
What is reliability and validity of measurement? Explain procedure for testing reliability and validity of survey...
What is reliability and validity of measurement? Explain procedure for testing reliability and validity of survey instrument used in your research.
How would you go about testing rainfall records to access their reliability? you can assume that...
How would you go about testing rainfall records to access their reliability? you can assume that other rainfall records are available both in the same region and within close regions
For the fall study how would you collect the data to ensure its reliability and validity?...
For the fall study how would you collect the data to ensure its reliability and validity? What instrument would you use? Discuss the considerations you made in making this choice.
How would you describe the validity and reliability of a study consisting of population national surveys...
How would you describe the validity and reliability of a study consisting of population national surveys (CPS) and state specific surveys (CHIS)?
Describe the concept of reliability. What is validity and how does it differ from reliability? Briefly...
Describe the concept of reliability. What is validity and how does it differ from reliability? Briefly explain two ways to compute reliability.
Explain the importance of validity and reliability in diagnostic testing or research. describe how validity relates...
Explain the importance of validity and reliability in diagnostic testing or research. describe how validity relates to sensitivity and specificity in diagnostic testing. identify a health screen specific to a diagnostic test that is currently being debated regarding its use, recommended ages or frequency and discuss how validity and reliability plays into this debate. what other factors should you consider when you assess the recommendations for diagnostic test or screen?
Here is the question of today: Reliability vs. Validity How would you explain the difference between...
Here is the question of today: Reliability vs. Validity How would you explain the difference between reliability and validity? Which examples would you use to illustrate the concept? NCSU: Fan Aptitude Test Suppose this clip demonstrated a serious aptitude test. What would the results of a fan aptitude test reveal to us? Is this a valid test of intelligence? Why or why not? NFL and the Wonderlic Test Why do employers give job candidates tests like the Wonderlic? How do...
a. What are the research reliability and validity? What is internal validity and construct validity? What...
a. What are the research reliability and validity? What is internal validity and construct validity? What are the difference between reliability and validity? b. Please describe research hypothesis and statistical hypothesis. What are the difference between these two kinds of hypotheses? c. What are three level of research? Exploratory research, descriptive research and explanatory research? What are the difference between them? d. What are case-control design, nested case-control design, and cohort design? What are the difference between case-control design and...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT