Scaling extrafoveal detection of distortion in a face and grating

Peripheral performance involving simple visual tasks and stimuli can be equated with foveal performance by spatial scaling, whilst more complex tasks and stimuli seem to need additional scaling of image contrast. We therefore determined whether the contrast manipulation needed to compensate for eccentricity-dependent performance changes is due to an increase in stimulus or task difficulty. We measured contrast sensitivities to determine foveal and peripheral ability to discriminate between an original and a distorted version of a polar-circular sinusoidal grating and a face image. Contrast sensitivities as a function of image size were spatially scaleable across eccentricities for both the face and grating. Furthermore, irrespective of stimulus, performance could be scaled with the same individual E2 value. Thus task simplicity overrides the nature of the stimulus in determining scaling requirements, suggesting that it is the complexity of the task, not of the stimulus, that makes contrast scaling necessary in complex tasks.     

DIMENSIONS AND CORRELATES OF THE PERSONNEL AUDIT AS AN ORGANIZATIONAL ASSESSMENT TOOL

This study analyzes the measurement properties of the personnel audit as an organizational assessment tool and the extent to which audit results relate to important organizational criteria. The findings reported here indicate that nine dimensions can effectively summarize 37 audit measures. The composite factor scores for these dimensions predict executive perceptions of "overall organizational performance" and "overall contribution of Personnel Function," employee "overall satisfaction with personnel services," and to a lesser extent, "profitability per capita." The personnel budget allotted per capita is in turn related to executive perceptions of Personnel's contributions.