The Outcome Assessment and Information Set (OASIS) plays an essential role in home healthcare. To date, few researchers have investigated the psychometric properties of the OASIS in actual clinical practice. This study used several methodologies to estimate reliability and validity of OASIS when clinicians were conducting assessments as part of the routine care process. Analyses from a delayed assessment approach (n = 259), a simultaneous assessment approach (n = 105) and an assessment of consistency between OASIS and the Centers for Medicare and Medicaid Services (CMS) 485 (n = 141) provided insights into OASIS reliability and validity. Reliability for many items was considerably lower than prior studies and there were notable inconsistencies between several domains of OASIS and the CMS 485. Based on these findings it was also unclear whether prior reliability findings could be generalized to practice because the previous research did not account for the stresses and unpredictability of the home healthcare setting. Further, the inconsistencies between the OASIS and CMS 485 suggested that the OASIS might not truly reflect the patient's condition. Implications for improving the use of the instrument in practice settings are discussed.

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In this paper, a modified decentralized finite control set model predictive control (FCS-MPC) scheme for the distributed energy resources (DERs) is proposed to improve the power management quality of the prosumers integrated microgrids under the condition of harmonic and unbalance loads. The proposed control strategy for the microgrids mainly consists of the power droop controller, the model predictive controller delay compensation, feedback correction and the unbalance compensation mechanism. The feedback correction method is used to correct the delay compensation, which effectively reduces the average switching frequency (ASF) and voltage total harmonic distortion (THD). By sharing the negative sequence reactive power of the microgrid, power distribution between the prosumers' DERs is improved. The DERs in the prosumers can be integrated without any communication wire. The transient response and robustness to parameter changes are far superior to hierarchical cascaded control. Moreover, the proposed control strategy can better suppress harmonic and reduce and share fundamental negative sequence reactive power under microgrid unbalance and nonlinear load conditions. Finally, the effectiveness of the proposed FCS-MPC control strategy is validated by time-domain simulation results and real-time tests with RT-Lab under the condition of unbalanced and nonlinear loads in the microgrids.INDEX TERMS Microgrids, finite control set (FCS), model predictive control (MPC), voltage source converter (VSC), unbalance and harmonics control.

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