Webber R Probes Set WRP-11 Webber R Probes Kit includes: Instruction Guide ** — Two full-color laminated Storytelling Probe Cards ** — One laminated Words and Sentences Probe Card ** — 50 Webber® R Probes Forms. — Do you have students that can produce R in some words, but not in others? Want to shorten the time you spend treating R? Webber R Probes is a thorough, easy to use... more » checklist for pinpointing exactly where your students have difficulty saying R. Based on the Secord Contextual Articulation Tests (S-CAT) by Wayne Secord and Richard Shine, Webber R Probes assesses Prevocalic R and Vocalic R in 70 words and 10 sentences in 42 different contexts. It also includes two storytelling probes for assessing connected speech.« less