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Data Collection

Baisc Statistics Questions

What research study includes repeated observations over a period of time? What type of research uses focus groups or small studies to get a "feel" for the problem? What means in name only, data that consist of observations that can only be classified and counted by category and have no inherent order? Sing basic researc

Data Collection paper

1. Data Collection Paper use the Internet, Electronic Reserve Readings (ERR), or other resources to locate at least four peer-reviewed, scholarly research articles that are relevant to your research topic. Write a 1,050-1,750-word paper in which you include an edited version of last week's learning team paper and the following

NASA Scheduling Problem

NASA's astronaut crew currently includes 10 mission specialists who hold a Ph.D. in either astrophysics or astromedicine. One of these specialists will be assigned to each of the 10 flights scheduled for the upcoming 9 months. Mission specialists are responsible for carrying out scientific and medical experiments in space or

Development of R and x¯ charts

The Goodman Tire and Rubber Company periodically tests its tires for tread wear under simulated road conditions. To study and control the manufacturing process, 20 samples, each containing three radial tires, were chosen from different shifts over several days of operation, with the following results. Assuming that these data

Five point scale

Here is a scenario, which uses graphical displays, and your job is to assess accuracy of the result. Suppose the administrator of your hospital wanted to reduce the number of nurses on staff and distributed a survey concerning this possibility. The results that came back appeared to be overwhelmingly against the project, but t

Sampling Error Analysis - M&Ms

I have an assignment in which I am to calculate the sampling error from a bag of M & M's. the directions were to go buy a bag of M & M's from the store and count the colors. The go to M & M's web site and get the % counts of each color. Compare your counts (%) to those of the M & M web site. Calculate your sampling error

Continuous Data Collection and Analysis Paper

The data MUST be at least 30 and continuous data. Some examples are the actual weight of 5-lbs bean bags sold at Wal-Mart, the time given by a park-o-meter for 25 cents, the height of 30 people you know, the length of drive to work for 30 day, the time it takes you to brush your teeth, Gas prices for 30 stations for the same c

Research Process Outline

Identify a research issue, opportunity, or problem that uses data that has absolute zero measurements. Some examples include a team member's stock portfolios performance, increase in customer returns or complaints, reduction of profit, High absenteeism in the department, and commute time to work for employees and so forth.

A cohort study - selecting a defined population

Question: In a cohort study, the advantage of starting by selecting a defined population for the study before any of its members become exposed, rather than starting by selecting exposed and non-exposed individuals, is ________________. Answer: A number of exposures can be studied simultaneously. Why isn't this the right

Lack of Randomization

A major problem resulting from the lack of randomization in a cohort study is: the possibility that a factor that led to the exposure, rather than the exposure itself, might have caused the disease (correct answer). Why is the following NOT considered a correct choice for the answer to the question? (The possibility that a

Cohort Studies

In cohort studies of the role of a suspected factor in the etiology of a disease, it is essential that: The exposed and non-exposed groups under study be as similar as possible with regard to possible confounding factors. The Review Questions answers do not address (why nots)...So why is the answer not: There should be equal

Double-Blind Studies

The purpose of a double blind or double masked study is to avoid observer and subject bias. Why is "achieve comparability of treated and untreated subjects" not correct? If the study is double blinded, is not the objective equal and unbiased comparability of treated and untreated subjects??

Identifying sources of error

Read the attached case study (it is about an intellegence testing situation) and identify three aspects of the testing situation, including characteristics and behaviors of both tester and test-taker, that might have introduced error into the test score. Also, briefly comment on how you think these sources of error might influe

Ethical Practices in Statistics

The statistical research was done primarily through the internet from governmental regulated sources. Estimates were used in consideration of absence of actual information. a. Identify two to three sources of ethical issues in your statistical research and data collection. b. Evaluate potential biases in your

Managing Research Design

Coffee Time is a company that is interested in the coffee-drinking habits of people in India. What is the problem in asking subjects: How many cups of coffee have you consumed in the past 30 days? What subjects would be the most likely to provide an accurate description? How could this question be modified to provide more accura

US Census and Variables

I am just trying gather some information on this opinionated question: Could the US Census be made more useful? What variables do you think should be added? What variables should be eliminated? (When I say variables I am referring to the data gathered for the Census, such as age, sex, ethnicity)

5 data collection techniques

1. Describe 5 data collection techniques in your own words. 2. Explain to me why the examination of collected data is so important.

The Fundamentals of Statistics

As part of AIU's Job Satisfaction Study, data will need to be collected from individuals. Describe 5 data collection techniques in your own words. Be sure to cite any sources you used. Explain why the four demographic questions you included in your survey are important and/or are of interest to the study. Any help will

I have a hypothetical experimental design

Name two weaknesses of the following design (i.e, threats to either internal or external validity). Describe how the weaknesses could be overcome. A. O1 X O2 Two group Pretest- Posttest O1 -- O2 Note: O = Pretest Observations O2 = Posttest Observations X= Treatment (R) = Random Sel

Primary and Secondary Research

How would managers find benefit in helping them to obtain valuable information in problem identification research. Discuss whether these data are secondary or primary and justify your answers 1. Forecasting and business trend research 2. Market share and market potential 3. Segmentation and marketing mix research

Conducting research in natural settings is questioned.

Conducting research in natural settings is difficult and challenging, but provides the reward of _____________ (a) internal validity, (b) statistical validity, (c) face validity, (d) good generalization of results to real-world settings

Research instructions are discussed.

All instructions to the participants, procedures, and tests should be ___________ (a) prepared and piloted, (b) ambiguous, (c) non-defensive and user friendly, (d) creative and original This question is presented.

Problems in administration procedures are noted.

Problems in administration procedures __________ (a)occur only once the data has been collected, (b)should be solved in pretesting before data collection, (c)do not occur if an established procedure is used, (d)should be handled on a participant-by-participant basis

A question about naturalistic methodology is offered.

A researcher uses naturalistic methodology to study dating behavior in college students. He/she finds the behavior on dates is strongly affected by alcohol (i.e., the more students drink alcohol the more uninhibited they become during dates). With this information ______________ (a) establish a specific proposition that al

The external validity

Dr. Veda recruited several students from her research methods course to serve as research participants in one of her experiments. Given that they are highly interested in research methods and are all doing very well in her research methods course, the external validity of Dr. Verda's study may be limited to a. A ceiling eff

Manipulating an independent variable

Dr. Friedman, an environmental psychologist, presented various amounts of background noise to his participants. He measured whether their answers to a standard set of mental problems were affected. His approach to manipulating his independent variable involved a. Manipulating the content b. Manipulating the social settin

Educational psychology procedures are noted.

Jack is doing a project in educational psychology. Before the experiment, he rank-orderes all his participants according to achievement test scores. He takes the top two scores and randomly assigns one to the experimental group and one to the control group Then he takes the next two scores and randomly assigns one to the ex

Converging operations is the focal topic.

Anthony is measuring his participants' emotional states in two different ways (self-report and galvanic skin response) in order to gain a greater confidence that he is actually measuring the emotional that he thinks he is. What is using multiple dependent measures in one study?