The SEQTEST Procedure

Examples: SEQTEST Procedure

The following examples perform group sequential tests with various designs and test statistics.

Four statistic scales are available for the input boundary values, the input test statistic, and the displayed test information in the SEQTEST procedure. These are the maximum likelihood estimator scale, score statistic scale, standardized normal $\text{[math]}$ scale, and $\text{[math]}$ -value scale. There is a unique one-to-one transformation between any two of the scales, and you can use different scales for the input boundary values and input test statistic. These boundary values and test statistic are displayed with the scale specified in the BOUNDARYSCALE= option in the SEQTEST procedure.

Testing the Difference between Two Proportions
Testing an Effect in a Regression Model
Testing an Effect with Early Stopping to Accept $\text{[math]}$
Testing a Binomial Proportion
Comparing Two Proportions with a Log Odds Ratio Test
Comparing Two Survival Distributions with a Log-Rank Test
Testing an Effect in a Proportional Hazards Regression Model
Testing an Effect in a Logistic Regression Model

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