Biomedical subjects
Publications and source records attributed to G Cook.
A working outline is provided of the "randomized response model" which offers an alternative indirect procedure for obtaining estimates of drug use. Evidence obtained from an experimental study demonstrated significant underreporting of drug use when estimates were obtained by standard direct methods of inquiry when compared to those obtained by randomized response technique.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
The maximum velocities of microsaccades (flicks) are an increasing function of amplitude of movement. Measured velocities fall on the extrapolation of the curve of maximum velocity versus amplitude for voluntary saccades and involuntary corrective saccades. Hence all these movements are produced by a common physiological system, or the characteristics of the movements are determined by a single dynamically limiting element.
This study examined the reliability of a test strip for assessing urinary nicotine and its metabolites. Urine samples from smokers were tested by two independent raters using the NicCheck I test strips. Each rater compared the test strip color to a five-color chart. Correlations between the rater's codings and between the coding and other measures of nicotine consumption were examined. Significant correlations were found between the two independent ratings of the test strip color and between the codings and other measures of nicotine consumption. This preliminary evaluation suggests that NicCheck I is sensitive to differences in nicotine consumption.
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