● Author: Morrison F. Gardner


● Sequencing, Perception, Reversals
● Ages 5-0 through 8-11
● Individual and Group Administration
● Norm-referenced 


[ Description ]
● The TPFLNSOSS uses a series of simple identificaion tasks to determine child's ability to detect both reversals (of common objects, abstract designs, paired letters, letters within words, and numbers,) and letter sequencing errors. 
● The tests is amenable to use with diverse populations; while the items are presented visually, responses require neither reading nor motor skills. 
● Instructions may be pantomimed for children with hearing deficits. 
● Since children mark their answers directly on the test booklet pages, the test may be administered to small groups of children at one time. 
● The TPFLNSOSS is designed to be used by a number of professionals including optometrists, occupational therapists, resource specialists, teachers, reading specialists, and psychologists.
● Administration and ScoringThe TPFLNSOSS is quickly and easily administered to individuals or small groups in about 10 to 15 minutes. 
● Basals or ceilings are not needed to determine the scores. 
● Each task section is scored separately and can be reported as standard scores, scaled scores, percentile ranks or stanines.