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Dunnage is traditionally defined as “loose wood, matting, or similar material used to keep a cargo in position in a ship’s hold.” In the medical device manufacturing world, however, it’s come to serve as the umbrella term for any dummy samples used in medical package testing and validation.
Jan 7, 2015 · Statistical hypothesis testing is common in research, but a conventional understanding sometimes leads to mistaken application and misinterpretation. The logic of hypothesis testing presented in this article provides for a clearer understanding, application, and interpretation.
- Peter J. Veazie
- 2015
Jan 28, 2020 · A test statistic is a number calculated by a statistical test. It describes how far your observed data is from the null hypothesis of no relationship between variables or no difference among sample groups.
- Statistical tests commonly assume that: the data are normally distributed the groups that are being compared have similar variance the data are ind...
- A test statistic is a number calculated by a statistical test . It describes how far your observed data is from the null hypothesis of no relati...
- Statistical significance is a term used by researchers to state that it is unlikely their observations could have occurred under the null hypothesi...
- Quantitative variables are any variables where the data represent amounts (e.g. height, weight, or age). Categorical variables are any variables wh...
- Discrete and continuous variables are two types of quantitative variables : Discrete variables represent counts (e.g. the number of objects in a co...
Aug 8, 2019 · Reliability measures the consistency of results over time; between observers; between versions of a test; and between items of a test. Reliability tells you how consistently a method measures something.
- Reliability and validity are both about how well a method measures something: Reliability refers to the consistency of a measure (whether the resu...
- You can use several tactics to minimize observer bias . Use masking (blinding) to hide the purpose of your study from all observers. Triangulate yo...
- Reproducibility and replicability are related terms. A successful reproduction shows that the data analyses were conducted in a fair and honest man...
- Research bias affects the validity and reliability of your research findings , leading to false conclusions and a misinterpretation of the truth. T...
What does the noun dunnage mean? There are two meanings listed in OED's entry for the noun dunnage. See ‘Meaning & use’ for definitions, usage, and quotation evidence. dunnage has developed meanings and uses in subjects including.
Nov 8, 2019 · State your research hypothesis as a null hypothesis and alternate hypothesis (H o) and (H a or H 1 ). Collect data in a way designed to test the hypothesis. Perform an appropriate statistical test. Decide whether to reject or fail to reject your null hypothesis.
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What is dunnage in medical package testing?
What is dunnage and why is it important?
What is dunnage in medical device manufacturing?
What is test research?
Mar 1, 2004 · By “test research” we refer to studies that follow a single-test or univariable approach, i.e., studies focusing on a particular test to quantify its sensitivity, specificity, likelihood ratio (LR), or area under the ROC curve (ROC area).
