Sampling and data collection in research paper

BSHS/435
January 18 2016

Sampling and data collection in research paper

Introduction
In this essay, I will discuss two ways for him to service professional to conduct research through sample lien and data collection. Through the use of research and he was there's a vessel can be better assist their clients ensuring their clients have the skills needed to reach their goals and objectives.
What is the purpose of sampling
Sampling allows the human service professional to research one narrow topic at a time instead of a whole group "A major reason for studying samples rather than the whole group is that the whole group sometimes is so large that studying it is not feasible" ( Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). A human service professional will receive better information through sampling; a sample is one or more elements of a population.

The characteristics of probability and nonprobability

"Probability sampling techniques is too sure that each element has an equal chance of inclusion"(Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). There are four aspects of probability sampling, simple random sampling, systematic sampling, stratified sampling, and area sampling. When probability sampling is not always the appropriate technique to use "Nonprobability sample's in which the investigator does not know the probability of beads populations elements inclusion in the sample"(Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). There are five characteristics for nonprobability sampling evaluating sampling, snowball sampling, photo sampling, purpose sampling, and dimensional sampling.

The scales of measurement used in research
There are different methods that a personal can use to gather the information that they need to their research, all of these methods different from their levels of measurement. "Measurements refers to the process of describing abstract concepts in terms of Pacific indicators by assigning numbers are other symbols to these indications in accordance with rules" (Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011).The different levels of measurements are simple measures, ordinal measures, and interval measures, and ratio measures.

What are the types of reliability?
"Reliability refers to measures ability to yields consistent results each time it is applied" (Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). There are different types of reliability such as test-retest, and then going back and retesting, that group again on the same topic. Multiple forms "The multiple forms technique relies on the two forms appearing to the respondent as though there were only one, long measures so that the respondents do not realize they are taking the same test twice"(Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). and internal consistency approaches "internal consistency approaches to reliability use a single scale that is administered to one group of people to develop an estimate of reliability" ( Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011).

What are the types of validity?
" validity refers to the accuracy of a measure"( Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011), there are different types of validity such as face validity that assess whether or not there is a logical relationship between a variable and prosed measure. content validity or sampling validity "Which has to do with whether a measuring device covers the full range of Meanings or forms that are included in a variable to measure"( Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). Criterion validity "Established validity by showing a correction between a measuring device and some other criterion or standard that we know believe accurately measured the variable under consideration" (Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011).concurrent validity compares results to another measuring device. Predictive validity predicts some future state of affairs. In addition, construct validity "Involves relating an instrument to an overall theoretical framework to determine whether the instruments is correlated with all the concepts and propositions that comprise the theory" (Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011).

Surveys methods

By completing telephone surveys, it saves money and time because telephone surveys are cheap and fast. The disadvantages of telephone surveys are that you are not able to devote much time to the interview and telephone surveys prevent you from seeing body language. Online and website services have several advantages such as the speed, and low cost for the survey and that through the internet you can reach people from anywhere. Although there are several advantages, there are also disadvantages to online and website surveys such as the fact that not everyone has access to the internet and some people ignore survey requests. Focus groups, there advantages to focus groups such as they are flexible, low cost and you can get quick results. Although there are advantages there are also disadvantages to focusing groups such as in larger groups in is harder to get precise results.
Which survey research method would I use?
If I were conducting a research survey, I would prefer to complete the survey through a focus group, because I will be able to look at each person’s body language and reaction. I could also see how each member reacts to one another, and the survey would feel more personal.
Conclusion
In this essay, I discussed the purpose of sampling and the characteristics of probability and nonprobability as well as data collection and the measurement used in research. I also addressed the types of reliability and validity in research and the advantages and disadvantages to the different methods used in research and surveys.

References

Monette, D. R., Sullivan T. J., & DeJong, C. R. (2011). Applied social research: A tool for the human services (8th ed.). Belmont, CA: Brooks/Cole.