  In the traditional simple step-stress partial accelerated life test
(SSSPALT), the items are put on normal operating conditions up to a certain
time and after that the stress is increased to get the failure time information
early. However, when the stress increases, an additional cost is incorporated
that increases the cost of the life test. In this context, an adaptive SSSPALT
is considered where the stress is increased after a certain time if the number
of failures up to that point is less than a pre-specified number of failures.
We consider determination of Bayesian reliability acceptance sampling plans
(BSP) through adaptive SSSALT conducted under Type I censoring. The BSP under
adaptive SSSPALT is called BSPAA. The Bayes decision function and Bayes risk
are obtained for the general loss function. Optimal BSPAAs are obtained for the
quadratic loss function by minimizing Bayes risk. An algorithm is provided for
computation of optimum BSPAA. Comparisons between the proposed BSPAA and the
conventional BSP through non-accelerated life test (CBSP) and conventional BSP
through SSSPALT (CBSPA) are carried out.
