Closure Speed Test (Gestalt Completion)

Measures the ability to perceive an apparently disorganized group of parts as a whole.


The Closure Speed test is a paper based tool which can be administered individually or to groups. The test booklet contains one page of instructions (including three practice exercises) and two pages of test items. There are 24 items in the test. Each item consists of an incomplete picture drawn in black on white. The subject must identify and briefly describe the subject of the picture in the space provided for this purpose. The test is timed and is a measure of the speed with which the subject can integrate apparently unrelated parts into a meaningful whole. It can be used with a wide variety of subjects of all ages and can be appropriately administered in schools whenever a test of closure speed is desired. However, present usage is predominantly in industry and governmental organizations and norms are provided for these personnel.

Closure speed measures one of the significant components of the visual perceptual skills. The test measures what has been identified as the “first closure” factor. This factor is defined as the ability to perceive an apparently disorganized or unrelated group of parts as a meaningful whole, i.e. the capacity to construct a whole picture from incomplete or limited material. The basic perceptual capacity may manifest itself at a more general level as the conceptual ability to grasp and unify a complex situation. Several research studies have shown that the Closure Speed test is a good measure of the first closure factor.

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