Carla W. Hess

Factor Structure of the Rahim Leader Power Inventory (Rlpi) with Clinical Female Student Supervisees

The purpose of the present study was to test the construct validity of scores based on the five-factor structure (i.e., the five power bases) of the Rahim Leader Power Inventory (RLPI) when administered to student clinical supervisees. A sample of 276 female graduate students enrolled in clinical practica in speech-language pathology provided perceptions of their supervisors’ use of power. Factor analytic methods were used to identify factors for comparison to those that had emerged in the RLPI standardization study of a national random sample of 476 executives. The five-factor structure of the RLPI was substantiated with these clinical supervisees.

THE TYPE-TOKEN RATIO AND VOCABULARY PERFORMANCE

The Type-Token Ratio (TTR), a measure of lexical diversity, was correlated with four measures of vocabulary performance: the Peabody Picture Vocabulary Test-Revised, the Oral and Picture subtests of the Test of Language Development, and the Test of Written Language. The vocabulary tests were administered to 21 6-, 7-, and 8-yr.-old children from whom language samples were obtained for the application of three Type Token Ratio measures: the TTR-Total for the whole language sample, the TTR-100 for language samples of 100 words, and the CTTR, a procedure intended to be independent of language sample size. One correlation of .45 (between the CTTR and the Oral-TOLD) was significant. More research on validity is necessary to clarify the measurement domain of the TTR, if it is to be useful clinically.

Measuring Linguistic Development in a Child Adopted from Romania

This study explored the clinical utility of two established linguistic measures with a developmentally delayed preschool child adopted from a Romanian orphanage.