Intelligence by Ian Deary

Author:Ian Deary [Deary, Ian]
Language: eng
Format: epub
ISBN: 9780192893215
Publisher: Oxford University Press
Published: 2001-01-01T05:00:00+00:00

Reaction time

People with higher intelligence test scores have, on average, shorter and less variable reaction times.

Look at Figure 14, which shows a box that measures people’s reaction times. First, let’s describe the equipment and how it is used by experimenters. Recall that inspection time was intended to assess how well people could make a discrimination when the visual figure was shown for only a very brief time. It was to do with speed of taking in visual information from the world. There was absolutely no need to respond quickly. Reaction time, on the other hand, is to do with how quickly people can make a correct physical response to a signal. The box shown in Figure 14 has eight buttons arranged in a semi-circle. At the bottom of the box there is one other button, equal in distance from the other eight. This separate button is called the ‘home’ button and the other eight are called ‘target’ buttons. Each button contains a light and is also a press-down switch.

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