Simwa, Richard OnyinoManene, M. M.2025-05-262025-05-262004Simwa, R. O., & Manene, M. M. (2004). The Performance of One Type Step-Wise Group Screening Designs. Indian Journal of Mathematics.0019-5324https://repository.daystar.ac.ke/handle/123456789/6776Journal ArticleIn this paper, we evaluate the performance of one type step-wise group screening designs in which group-factors contain equal number of factors in the initial step. We shall examine one type step-wise group screening designs without errors in observations, considering the possibility of cancellation of effects within group-factors. Expressions for the expected total number of runs and the expected number of active factors detected are obtained. The performance of one type step-wise group-screening designs is then compared with the performance of multistage group \ screening designs. Group screening designs have both biological and industrial applications.enone type step-wisescreening designsArticle