TY - RPRT TI - Selecting, developing, and evaluating research instruments. AU - G E Switzer AU - S R Wisniewski AU - S H Belle AU - M A Dew AU - R Schultz PY - 1999 DO - 10.1007/s001270050161 UR - https://pubmed.ncbi.nlm.nih.gov/10501709/ ID - 10501709 ER -