Eye chart smaller symbols until the person cannot identify the symbols. The smallest symbols that can be reliably identified is considered the person's visual acuity. The Snellen chart is the most widely used. Alternative types of eye charts include the logMAR chart, Landolt C, E chart, Lea test, Golovin–Sivtsev table, the Rosenbaum chart, and the Jaeger chart. Charts display several rows of optotypes, which are standardized symbols for testing vision. Optotypes are usually letters, numbers, or geometric symbols. Each row of the chart depicts optotypes of a different size. Typically the largest optotypes are in the top row. The optotypes become progressively
Name-letter effect once according to estimated letter frequency. Subjects indeed significantly overestimated the frequency of letters in their names, although there was no significant positive correlation between the overestimation of frequency and the name-letter effect. The researchers also asked subjects to rate how much they liked their own name. Subjects who liked their name had a stronger name-letter effect than those who did not like their name, but they did not overestimate the frequency of own-name letters more than subjects who did not like their names. Hoorens and Nuttin concluded that there is no support for the subjective frequency hypothesis. Evaluative conditioning