Human Analog Tests of the Sixth Stage of Object Permanence

Two adult cats were tested on multiple invisible displacement. A dowel was established as a secondary reinforcer and hidden in a manner similar to that used to assess the culmination of sensorimotor intelligence in human infants. Three other cats were tested on single invisible displacement, a simpler version of the task. For human infants, this task is used to assess the beginning of mental representation in the sixth and last stage of sensorimotor intelligence. The cats' searches on these tasks were consistent with representation of an unsensed object and fully developed sensorimotor intelligence.

Development of an Underwater Test Battery to Measure Gross Motor Performance

An effort was made to develop analog tests to Fleishman's Gross Motor Performance Battery for administration underwater. This was an initial effort focused upon the demonstration of feasability of the effort and the development of an initial battery for demonstration purposes. Results indicated that it would be possible to develop such an analog for use in selection, training, and equipment evaluation underwater.