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Introduction to POSSA. Sequential tests for two means (t-tests).1 years ago
User functions for sample simulation and testing | POSSA's sim and pow | Adjusting local alphas | Specifying initial local alphas | Futility bounds | Specifying observation numbers per each sample | Paired (and correlated) samples – "GRP" group notation | Arbitrary stops | More...
Recording descriptives. Varying factors. Testing multiple hypotheses.4 years ago
Recording descriptives | Varying factors | Testing multiple hypotheses | Basics – notation for multiple groups | Sequential design | Specifying local alphas per each test | Non-stopping local alphas | Specifying observation numbers per each group | That's all
Practical examples (unequal variances; ranked data; ANOVA; DeLong's test)4 years ago
Unequal variances | Ranked data | ANOVA | DeLong's test
Benchmarking POSSA.4 years ago