Single contrast tests for detecting trends in binomial proportions

The present study is related to the detection of trends in binomial proportions. Most of the tests usually adopted to detect trends in this regard are either based on scores, the choice of which is subjective, or are difficult to administer because of being complicated. As a remedy, two single contrast tests are proposed for this purpose. Performance measures of the proposed tests are obtained numerically and are compared with those of some of the existing competitors.