Guide on Triangulation Methods and Reliability and Validity For Research Studies

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Discussion 1
Triangulation Methods
Triangulation can be referred to as the process which combines different methods, views and strategies for developing a solution for a single problem. It is one of the best technique or method for evaluating a qualitative research. Qualitative research is the study of events or people through consideration of their characteristics, attributes and other small features and it does not include carrying out severe statistical calculations (Flick, 2004). It is very useful for identifying the desultory in the case that is being studied. There are mainly four types of triangulation method:
Data triangulation: It involves considering the time, place and other information.
Investigator triangulation: It refers to use of many observers or investigators for a single case.
Theoretical triangulation: It consists of using many theories for a single concept.
Methodological triangulation: It includes using different means or methods to collect the data for triangulation (Flick, 2004).
For our case, we would be using a combination of the Investigator Triangulation and methodological Triangulation.
Triangulation Methods Justification
Using a combination of Investigator and Methodological triangulations in our case that involves carrying an extensive case study in the educational field would help to identify the different factors which are inculcated among the participants. Here, the participants are the teachers of the large urban school and the results would be tested to check its reliability. With the aid of the two Triangulation methods stated above, detailed analysis of the case study can be obtained. Reliability refers to the extent up to which the results obtained in the case study would be applicable over a period of time and under different conditions (Morse, Barrett, Mayan, & Olson, 2002).
Reflection
Qualitative research is not brusque and callous; instead it helps in obtaining candor and honest case study. With the help of Triangulation method, better evaluation and simplification of the details convoluted in the case can be obtained. Thus, it can be stated that using the above mentioned triangulation methods would help in identifying the coherent factors involved and help in achieving high levels of reliability.
Discussion 2
Validity refers to the level to which the research or a case study can be implied and checking the accuracy and coherency of the research method. It is as important as reliability for measuring applicability and appropriateness of any qualitative research study (Morse, Barrett, Mayan, & Olson, 2002). Carrying Investigator and Methodological triangulation would help in achieving validity as it offers different perspectives to the case and also provides different means to evaluate and analyze it (Flick, 2004).
When to Use Both: Reliability and Validity
Both the concepts, namely, Reliability and Validity are equally important and they provide with accurate results of a research study. Reliability helps in obtaining the accuracy of the research when it is implied on multiple cases. On the other hand, validity helps in obtaining the adaptability of the research for each and every single case. Hence, it has different applications and it is also possible for one research study to be valid and not reliable and vice versa (Morse, Barrett, Mayan, & Olson, 2002). Our research involves obtaining the relationship between the children’s grades and the knowledge and skills of the teachers. For this, obtaining Validity and Reliability both, would be necessary as it involves dealing with the education of the children.
Reflection
Thus, Validity of the design used in our case would help in analyzing the test taken of the teachers who are teaching to the students in a large urban school. With the help of Rasch model, we would be able to develop a psychometric analysis of the data that has been collected in the form of questionnaires, surveys and tests (Wu, 2007). In this way, the knowledge and the college grades that were obtained by the teachers were established and its relationship with the performance of the children who have been taught by them is carried out. This would help in achieving a cumulative and demurring analysis of the qualitative research study.

References
Flick, U. (2004). Triangulation in qualitative research. . A companion to qualitative research, 178-183.
Morse, J. M., Barrett, M., Mayan, M., & Olson, K. (2002). Verification strategies for establishing reliability and validity in qualitative research. . International Journal for Qualitative Methods, 1(2), , 12-22.
Wu, M. &. (2007). Applying the Rasch model to psycho-social measurement: A practical approach. . Educational Measurement Solutions.

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March 9, 2018

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