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Tag Archives: dependent variables.
The logic of inference 2022 Best
THE LOGIC OF INFERENCE: THE SCIENCE OF UNCERTAINTY. Paper details: “All models are wrong. Some models are useful. ” —George E. P. Box (1919–2013) Statistician Describing and explaining social phenomena is a complex task.
The logic of inference
Paper details: “All models are wrong. Some models are useful. ” —George E. P. Box (1919–2013) Statistician Describing and explaining social phenomena is a complex task. Box’s quote speaks to the point that it is a near impossible undertaking to fully explain such systems—physical or social—using a set of models. Yet even though these models contain some error, the models nevertheless assist with illuminating how the world works and advancing social change.
The logic of inference
The competent quantitative researcher understands the balance between making statements related to theoretical understanding of relationships and recognizing that our social systems are of such complexity that we will always have some error. The key, for the rigorous researcher, is recognizing and mitigating the error as much as possible. As a graduate student and consumer of research, you must recognize the error that might be present within your research and the research of others. QUESTION: Write a very brief description (2–3 sentences) of the article (Knowledge Needs in the Non-profit Sector) and address the following:
The logic of inference
1. Describe how you think the research in the article is useful (e.g., what population is it helping? What problem is it solving?). 2. Using Y=f(X) +E notation, identify the independent and dependent variables. 3. How might the research models presented be wrong? What types of error might be present in the reported research? Be sure to support your essay with reference to the attached Learning Resources and other scholarly evidence in APA Style. https://youtu.be/HcS4lqXxrV4
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Designing an experiment 2022 Best
This second assignment of a series of three consists of designing an experiment, mainly a controlled experiment, and documenting such design in the format of questions/answers.
Designing an experiment
This second assignment of a series of three consists of designing an experiment, mainly a controlled experiment, and documenting such design in the format of questions/answers. These six questions need to be answered. A controlled experiment is an empirical test done under controlled conditions, meaning that just one (or a few) factors are changed at a time, while all others are kept constant. In a controlled experiment, researchers manipulate the independent variables (one or two, but not so many) to test their effects on dependent variables.
Designing an experiment
See the following figure which studies the influences of Caffeine on the Capacity of recalls measured via the number of words. The question a controlled experiment commonly should answer can be framed as: does making a change to the value of variable X (independent variable) have a significant effect on the value of variable Y (dependent variable)? For example, X might be an interface or interaction feature, and Y might be time to complete a task, the number of errors, or users’ subjective satisfaction from working with the interface. Question 1 – Application of controlled experiments.
Designing an experiment
Describe how a controlled experiment can be applied in your research proposal to study the influences of an independent variable on a specific independent variable, provide a rationale/motivation for why you apply controlled experiments, and the objectives of the research to be conducted while justifying the appropriateness of controlled experiment (in terms of expected outcomes of the research). Question 2 – Research Question and Variables Formulation Formulate a research question that shows/defines the relationship between independent variables and dependent ones.
Designing an experiment
Use the following table to organize your answer to this question. A good example of a scientific question for a controlled experiment can be: “What effect does the pH of water have on seed germination in spring?” The scientific question should be measurable, and controllable (meaning it quantifies the dependent variables versus independent ones). https://youtu.be/DaBq0naj0YY
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