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A red-green color vision test employing transparencies
Automatic signal selection for airborne direction finders
Generality of a speed factor in simple reaction and movement time
Note on age and intertrial variability for perceptual and motor speed tests
Perceptual and motor speed in an extended age group: a factor analysis
Perceptual differences between negro and white adolescents of similar symbolic brightness
Some methodological considerations in measuring visual thresholds for velocity