Concludes that constant errors of several degrees of visual angle may result if group-mean parameter values are used instead of individually determined parameter values. Because infants are relatively inaccurate in directing fixations toward a selected target, repeated calibration trials are required for collection of sufficient data on individual…

To guide the unbiased process of visual inference, a four-step model is presented for the assessment of reliability, intervention effect, meaningfulness, and generalizability. A Visual Inference Checklist (VIC) systematizes this assessment process. (Author)

This report discusses the current state of research into the visual effects of screen layout design, i.e., the arrangement of design elements on a screen. First, two types of design elements are described: technical (those things that engineers work with and that users have little or no control over), and comprehensibility (those elements that a…

Previous studies have suggested that correlations between reaction time (RT) and intelligence (IQ) may have resulted from confounding interactions between stimulus uncertainty and visual angle. Three experiments that were designed to remove the confound were carried out with 118 college students. These experiments indicate that previously reported…

Interracial/interethic choice patterns of 398 third and fourth grade children are measured utilizing various methods, including both projectively-based and reality-based paradigms. Attempts are made to establish the equivalence or nonequivalence of the different methodologies used to assess interracial choice patterns. Results indicate that all…