Thursday, March 15, 2007

Cyclic redundancy error

Need for research [15]

Content Analysis of a movie [20]

Semiotics [10]

This is an experiment. I am being read out Mass media Notes on the phone, and I am going to type this out while I am on the call. I am wondering if this will be a study in semiotics.

Why do we do market research? we do it to do business right? It is all about advertising. Which means we go to the ad world. How did the consumer talk about the product in the market? What do they need to do to improvise on the product? Should they launch a new product or develope an existing product.

There are many things that are proposed every now and them. These are propositions and predictions that are tested every now and then. Now what was done in this ad world, was a prediction, a future phenomenon... this was about control: Actively and fairly sampling the range of possible occurances, whenever possible as opposed to passive acceptance of opportunity, data is the best way to control the risks of emperical bias." There were seven steps to it: Define question, gather info and resources, form hypothesis, perform experiment, and collect data, analyse data, interpret data, and draw conclusions, and publish results.

Innacurate data collection can impact the results of a study and ultimately lead to invalid resultsd. That means the data should be accurate. The quantitative data collection research rely on RANDOM fucking sampling, and structured data collection instruments. The quantitative data collection method can fit diverse expiriences into predetermined response categories. They produce results that are easy to summarise, compare, and generalise, depending on the research questions, participants may be randomly assigned to different treatments. If this is not feasible, the researcher may collect data on the participants and situational charachteristics in order to control the influence on the dependant, or outcome, or variable. The intent is to generalise from the research participants to a larger population. The researched will employ probability sampling to select participants.

There are certain data collecting strategies.

1) Observing and recording well defined events

2) Obtaining Relevent data from management infosystems

3) Administering surveys with close ended questions, for example: Interviews in quantitative research than qualitative research. In a structured interview, the interview asks standard questions nothing more. This has a distinct advantage of establishing rapport with participants and gain their co-operation. These interviews yield the highest response rate in survey research. They also allow the researcher to clarify ambiguous answers, and when appropriate, leak seek follow up information. There are certain disadvantages as well, which includes impracticality when large samples are involved, it is time consuming and expensive, telephone interviews are less time consuming and less expensive, the researcher has ready access to anyone on the planet who has a telephone. But a disadvantage to this is a low response rate, which is not as high as a face to face interview. But the response is considerably higher in male candidates. The sample may be biased to such an extent that the people who dont have phones, are a part of the population about who the researcher wants to draw inferences about.

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