Language testing ; Sociolect ; Lagerliteratur; Gefangene (Sprachverhalten) ; Prisoners' language behavior ; Jugendliche (Sprachverhalten) ; Adolescents (language behavior) ; Jargon; Youth language ; Language and sex; Gender studies; Metrosexuality; Language and gender ; Sprachfehler; Language attrition (pathol.) ; Language loss (pathol.) ; Sprachverlust (pathol.) ; Speech pathology