While the error rates for verbs, adjectives, and pronouns decreased, the error rates for nouns and numerals increased.
Because discriminability was dependent on magnitude for dots but not for numerals, the difference between two choices corresponding to a given perceptual increment depends on magnitude for dots, but not for numerals; i.e. the perceptual value of numerals increases almost linearly with increasing magnitude, but the perceptual value for dot arrays falls off with magnitude (Fig. 4a).
Across the street from North Hollywood's Chandler Street subway station, "Drive By," completed in June by Los Angles duo Electroland, tracks each passing car with a violet-colored numeral that increases in value as the vehicle moves past the building.
Second, even though the monkeys did not show increasing inaccuracy with increasing numeral magnitude, they did show slower reaction times for smaller numerical differences, as do humans (Moyer and Landauer 1967).
"Investment in creativity gives a company considerably more security than, for example, its assets, age, liquidity, growth or financial strategy," he writes, adding that the numeral two even increases the risk.
This opens the door to a sensitivity analysis strategy whereby the analyst can start with a small number of points (screening-wise) and then – depending on the results – possibly increase the numeral of points up to compute a fully quantitative measure.
Hazard ratios provide information about the direction of an association (a numeral over 1 indicates an increased risk with the positive variable, and a numeral under 1 indicates a decreased risk) as well as the magnitude of the risk.
Although the increase WER for nouns is rather small, the increase for numerals is more significant.
This is consistent with a study on a chimpanzee who learned to match numbers of dots to Arabic numerals, who also did not show increasing reaction times for increasing numbers of dots (Murofushi 1987).
See numerals and numeral systems.
