Transcript BBTOP
BBTOP Bankson-Bernthal Test of Phonology Description • Developed in 1989 • Authors: – Nicholas W. Bankson – John E. Bernthal • Designed to serve as a quick and easy method for assessment of phonology in preschool and school-age children • Organized into three sections: – Consonant Inventory – Phonological Process Inventory – Word Inventory Assessment Goals • To assess the number of words produced without any consonant misarticulations • To assess the number of sounds (consonants and consonant clusters) in error. • To assess the number of errors reflecting one or more of the 10 most frequently occurring phonological processes. Age Population • Designed primarily for preschool and early elementary school children – up to grade level 3 • May be given to older children with severe phonologic/articulation problems • Screening version QSP may be used for a more brief assessment when needed – Quick screen of Phonology (QSP) – Based on 28 of the original 80 test items. Test Materials • Picture book: – 80 simple, colorful pictures for target ages • Record form: – Organized into sections for easy recording • Examiner’s Manual – Provides source for norm tables for scoring Consonant Inventory • Includes most English consonants in the initial and final positions • Assesses vocalic ‘er’ (stressed and unstressed) • Selected consonants clusters Phonological Process Inventory • Provides a system for reviewing child’s phonologic production for the presence of 10 most frequently occurring phonological processes: • • • • • • • • • • Assimilation Fronting Final consonant deletion Weak syllable deletion Stopping Gliding Cluster simplification Depalatilization Deaffrication Vocalization Word Inventory • Provides a short, reliable measure of overall phonological performance Test Administration • Administration time: Approximately 10-15 minutes. • Begin with casual conversation to ease child into comfort zone. • Instruct child to name or describe each picture that you show them from the picture book. • Clinician prompts are provided in Appendix F of the examiner’s manual. Recording Responses • Mark 1 in the box on response form for item in the column under “Word Correct” if response is articulated correctly. • Mark incorrect articulations with a 0 and then phonetically transcribe the response. • Responses other than the target word should be followed with a clinician prompt (Appendix F), then treated as correct/incorrect. Mark Modeled on the record form. Scoring Word Inventory • Calculate chronological age • Sum all words without misarticulations (raw score) and put in appropriate box on the record form • Refer to Appendix B to locate percentile rank and standard score based on the raw score. Scoring Consonant Inventory • Turn to page 3 of the record form • Locate each consonant in it’s specified row • Mark only those consonants in error by circling I (initial) or F (final) • For each consonant, count the number of times I and F were circled in its column • OR you may use the developmental scale scoring method: – ranges from 0-4 – 0= No difficulty with sound – 4= Strong evidence of difficulty with sound Scoring Phonologic Process Inventory • Form has 10 columns, representing the 10 phonological processes tested • Each word on the test is listed in each column • Examples of each phonological process are provided in each column • Circle the word in each column that each specific phonological process occurs • Total the number of times each process is identified in each column • Add totals to get raw score • Refer to Appendix D in examiner’s manual to convert to %tile score and standard score. Test Standardization • The BBTOP is standardized based on a sample size of 1070 subjects • Ages 3-9 years • 61 sites across the United States • Standardization based on quantifying a child’s phonological performance Test Norms • Examiner’s manual provides norm tables for 3 sections of the test • Based on a Mean of 100 and Standard Deviation of 15 • Norms based on 3 month age intervals from 3-0 to 6-11 and 6 month intervals from 7-0 to 9-11 Pros and Cons • Pros: • Cons: • Quick and Easy • Used as a formal test or as a screening device • Colorful pictures • Well-organized record form • Can be confusing to new examiners • Older test (1989) Thank You for Your Time and Attention!!!! Dr. Frank Kersting Western Kentucky University