Hope you enjoy this Initial /SH/ probe check for words, phrases, and sentences. As a SLP on the Go, I found that sometimes I need a quick check of skills and additional data support. This skills check is used for Response to Intervention (RTI) probing over a four week period. It is also used as baseline data (pre-test) at the beginning of a school year. It can then be used as post testing data at the end of the school year. This probe check has proven quick and easy as a supplement to probe skill level for an intake meeting and its documentation. Hope you enjoy this free Probe Check.