Reference no: EM133190729

Assignment -

1. Please reply to Maydel if you agree or disagree

A fundamental part of carrying out a statistical study of any kind is to obtain reliable results, for which the greatest possible amount of data is normally needed. But it was generally almost impossible or impractical to carry out some studies on a whole population, for this the solution is to develop the screening study in a subset of the said population in a sampling (Polit & Beck, 2004). The "what or who", that is, the participants, objects, events or communities of study are the units of analysis of an investigation. Their choice depends on the research approach and the scope of the study.

First, we will determine the sample. This will be the part of a selected population on which data will be collected, and that has to be precisely defined or delineated beforehand, the sample must be statistically representative of that population (Heale & Twycross, 2015). For this, we can use different methods, such as Probabilistic sampling methods, which includes, simple random sampling, systematic random sampling, stratified random sampling, random cluster sampling, on the other hand, we will have non-probabilistic sampling methods, which include, quota sampling, intentional sampling, and casual sampling (Taherdoost, 2016).

In the probabilistic samples, all the elements of the population have the same possibility of being chosen, the sample is obtained using statistical methods which will result in a representative quantity of the population. Probabilistic samples can reduce the error size and in turn, can measure it. In non-probabilistic samples, the choice of the elements does not depend on the probability but on the characteristics of the investigation or who makes the sample (Taherdoost, 2016). Here the procedure is not mechanical or based on mathematics, but the decisions of those who carry out the research, obeying various criteria. So in my personal opinion, I would be more inclined to the probabilistic samples since they would be making us with greater veracity to the real values of our studio.

References -

Heale, R., &Twycross, A. (2015, May 15). ResearchGate. doi:doi: 10.1136/eb-2015-102129

Polit, D. F., & Beck, C. T. (2004). Nursing Research (7th Edition ed.). Philadelphia: Lippincott Williams& Wilkins.

Taherdoost, H. (2016, January 01). Sampling Methods in Research Methodology; How to Choose a Sampling Technique for Research. ResearchGate, pp. 18-27. doi:10.2139/ssrn.3205035

2. Please reply to Marlene if you agree or disagree:

Sampling Methods and or specific samples are selected or determined based on the research you are conducting. When you have determined the type of research you want, you must then have a list of goals you you are expecting to meet. This will drive the precision and or information collected and the result would be viable if all the conditions have been met. If you do not plan properly you may have too small of a group or specific criteria that is not met and the end result will not be useful (Polit, D.F. and Beck, C.T. (2004) Nursing Research: Principles and Methods. 7th Edition, Page 240)

I believe that an effective method is observation which is also broken down to event sampling. This way you are able to group participants that meet a particular criteria that may be observed and you have based your outcome on a comparison or off personal knowledge for the event. I will also be organized to where anyone following the research can interpret and understand as well. (Complex Needs)

In closing, sampling methods is another great tool used in conducting research. It assist the researcher in collecting and organizing a systematically to make sure that all data is effective and the sample groups being used are big enough to the have a valuable and accurate outcome.

References - Polit, D.F. and Beck, C.T. (2004) Nursing Research: Principles and Methods. 7th Edition, Lippincott Williams & Wilkins, Philadelphia.