The development of four paper-and-pencil tests, useful in assessing the effectiveness of inservice training provided to either nurses aides or home health aides, was described. These tests were designed for utilization in employment selection and case assignment. Two tests of 37 multiple-choice items and two tests of 10 matching items were constructed. All item content was related to knowledge of nursing care. Reliability coefficients and validity coefficients of plus mean scores obtained prior to and following inservice training were reported. The data were obtained from nurses' aides who were employed to provide personal and rehabilitative care under supervision to geriatric patients in the patient's home. At least moderate success was reported in developing instruments which could be useful in selecting nurse's aides for employment, in selecting aides for assignments to patients requiring differing degrees of nursing care, and in assessing the effectiveness of inservice training in basic elements of nursing care. The tests and aide job-performance rating scales are appended. (Author/BJG)