Statistics Notebook: entry III.E: statistical significance and significance level, and entry III.F: P value.
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Contact Lenses↗
Biomedical subjects
W W Chase
Publications and source records attributed to W W Chase.
Statistics notebook: entry III.G: power of a test.
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Humans↗
Statistics notebook: entry IV.A: Confidence interval.
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Confidence Intervals↗
Statistics notebook: entry II.B: Observational study, (1) retrospective study, and (2) prospective study.
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Humans↗
Statistics notebook: Entry II.C: Masked studies.
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Bias↗
Statistics notebook: Entry III.A: Statistical hypotheses, null vs. alternative; Entry III.B: Statistical vs. research hypothesis.
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Humans↗
Statistics notebook: entry III.C: Hypothesis test, and entry III.D: Type I and type II errors.
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Humans↗
Statistics notebook: entry I.I., fine points of distribution shape, (1) skewness and (2) kurtosis.
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Contrast Sensitivity↗
Statistics notebook: entry I.K, the normal (or Gaussian) distribution.
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Contact Lenses↗
Statistics notebook: entry II. A., Controlled experiment.
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Humans↗
Statistics notebook: entry I.L., theoretical aspects of three important cousins of the normal distribution, (1) The chi 2 distribution, (2) The t distribution, and (3) The F distribution.
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Chi-Square Distribution↗
Entry I.J, types of data: nominal, ordinal, interval, and ratio scales.
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Statistics as Topic↗
Statistics notebook: population vs. sample.
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Data Interpretation, Statistical↗
Statistics notebook: entry IH, median: population vs. sample.
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Humans↗
A new electrode for electroretinography.
Clinical electroretinography is an uncomfortable, disquieting experience for a patient because of the contact lens electrodes used. Such electrodes are either expensive to buy or difficult to make. An aluminized Mylar electrode performs satisfactorily, elicits minimal patient apprehension or discomfort without topical anesthesia, is simple to make, and is disposable.
Aluminum↗