The evaluation of sign language proficiency needs to be based on measures with well-established psychometric proprieties. To date, no valid and reliable test is available to assess Polish Sign Language ("Polski Jezyk Migowy," PJM) skills in deaf children. Hence, our aim with this study was to adapt the British Sign Language Receptive…

Testing Spanish speakers presents certain challenges common to all testing circumstances involving test takers whose first language is not English. In addition, some unique challenges arise because there are many subpopulations of Spanish speakers both inside and outside of the United States. Spanish as spoken in Spain differs from that spoken in…