Visuals Can Add Greatly to a Presentation.
Research shows that adding visuals to the spoken word increases communication effectiveness by 40 percent to 50 percent.[1] Another statistic should also be kept in mind: If the visuals are poor, the result may lower communication success (Figure 7-2). I've been in many meetings where the best event would be for the bulb to burn out.
Figure 7-2. Visuals can help or hinder.
According to AV Communication Review, "The battle for supremacy between seeing and hearing has been waged presumably ever since man was endowed with eyes and ears. . . . Because of between-channel interference, it is not by any means ...
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