Stratified sampling

The American Cancer Society has created a very powerful ad that has an effective layout as well. A good layout should be able to draw attention to the main point, have balance, clarity, and simplicity, which this ad has accomplished. This ad is very simple but effective because the main point of the ad is clear to the viewers. The ad is effective in the way of providing emphasis as well. Some ads can be scattered and have too many points trying to be portrayed, but with this ad, there is no room…

touches the political and socio-economic structures that a nation is built on. The study also revealed the general opinion of the public about what trading with others is like to them. First, the study employed a rather straight-forward methodology and sampling design. It should be noted that a structured questionnaire was administered through randomly selected telephone lines to people who have attained…

are sample availability, accessibility, requires little time and effort, and cost effectiveness for the researchers, thus, the word convenience. However, sampling method suffers from a major disadvantage that relates to inaccurate representation of the population, which can distort results (Wisegeek, n.d.). The authors cite that the sampling method used pose a limitation to the study. The study sample includes only nurses who were employed in the study hospital that chose to answer the CWEQ-II…

Another aspect that remains open for criticism is if the author should have taken a cross-methodical approach and thus included a document review in his data acquisition. Millar describes that his original approach was to review video footage from the TRC hearings and then conduct interviews based on them. However he ultimately chose not to include these archival sources, as he found them to be insignificant to the local population (Millar 2010: 484-485). However the analysis of such material…

Building on this research, one could vary the data by including more high school students from different backgrounds and socioeconomic statuses. Finding out how these factors contribute to the number of AP classes taken and cumulative GPA will increase the effectiveness of this observational study. The limitation of the research was that many of the students who took the survey were from Ms. Moneypenny’s AP Statistics class, and other AP classes, as listed in the Introduction. This gave the data…

The focus of my field research was to attempt to discover people’s opinions of the NSA mass data collection programs. There are various surveys showing opinions on the Internet, but none specifically focusing on the area where I lived. So, I decided to create my own survey. Based on the general topic, I decided that most people would have a negative opinion, as America was founded on principles of freedom from government intrusion. As for my choice of a survey, I decided on it because a survey…

Of the studies identified as measuring speech perception or speech recognition, 10 were non-randomized treatment studies and 3 were randomized controlled trials. Due to their quasi-randomized study designs, De Miranda et al. 2008 and Stecker et al. 2006 were considered as non-randomized treatment studies. Of the thirteen studies, 3 were conducted in Portuguese Brazilian in Brazil. The rest were conducted in English in the United States. All articles were published in English between 1987 and…

According to Melnyk and Overholt (2015), sampling involves choices about study sites and people who will be able to provide data and perceptions about the study topic. There are different approaches to sampling that are based on a combination of criteria. When planning a research, nurses must make sure that the decisions that are being made are ethical. In my clinical practice, research is important. The most important aspect of the research that we have seen is informed consent. The…

Another type of sampling is systematic random sampling (Chamberlain, 2016). Using this method, researchers should develop a comprehensive list that is not structured (Chamberlain, 2016). Once the list has been compiled, the researcher should choose a random spot on that list, based off of the total sample size, and then select by interval moving forward (Chamberlain, 2016). While drawing a random sample is ideal, it is not always feasible. Therefore, another alternative sampling approach,…

Studies and information gathered from the population offers a valuable tool for a marketing manager to utilize when one is trying to increase wine sales in an operating establishment. Many studies exist, which concern factors shown to influence dining satisfaction such as the quality of food, the quality of the service, as well as the environment and ambiance. However, nominal research exists, which focuses on the customer’s satisfaction with wine when they are in a restaurant atmosphere, while…