The Self-confidence Scale SCS was developed by Frank Hicks in 2006 and was published in the work by Hicks, Coke and Li in 2009.
La Self-confidence Scale SCS fue desarrollada por Frank Hicks en 2006 y su versión publicada surge en el trabajo de Hicks, Coke y Li, en 2009.
A Self-confidence Scale foi desenvolvida por Frank Hicks, em 2006, e a sua versão publicada surge no trabalho de Hicks, Coke e Li, em 2009.