diff --git a/otava/main.py b/otava/main.py
index 8748ae2..36671b6 100644
--- a/otava/main.py
+++ b/otava/main.py
@@ -427,7 +427,7 @@ def setup_analysis_options_parser(parser: argparse.ArgumentParser):
     )
     parser.add_argument(
         "--orig-edivisive",
-        type=bool,
+        action="store_true",
         default=False,
         dest="orig_edivisive",
         help="use the original edivisive algorithm with no windowing "
diff --git a/otava/series.py b/otava/series.py
index bb3bf47..d8cb3c4 100644
--- a/otava/series.py
+++ b/otava/series.py
@@ -22,6 +22,7 @@
 from typing import Any, Dict, Iterable, List, Optional
 
 from otava.analysis import (
+    TTestSignificanceTester,
     TTestStats,
     compute_change_points,
     compute_change_points_orig,
@@ -248,7 +249,16 @@ def __compute_change_points(
                     values,
                     max_pvalue=options.max_pvalue,
                 )
-                result[metric] = change_points
+                tester = TTestSignificanceTester(options.max_pvalue)
+                intervals = tester.get_intervals(change_points)
+                for c in change_points:
+                    cp_ttest = tester.change_point(c.to_candidate(), values, intervals)
+                    result[metric].append(
+                        ChangePoint(
+                            index=cp_ttest.index, qhat=cp_ttest.qhat,
+                            time=series.time[cp_ttest.index], metric=metric, stats=cp_ttest.stats
+                        )
+                    )
             else:
                 change_points, weak_cps = compute_change_points(
                     values,
diff --git a/tests/cli_help_test.py b/tests/cli_help_test.py
index a0dfa42..2397b55 100644
--- a/tests/cli_help_test.py
+++ b/tests/cli_help_test.py
@@ -162,7 +162,7 @@ def test_otava_analyze_help_output():
                      [--output {{log,json,regressions_only}}] [--branch [STRING]] [--metrics LIST]
 {usage_filter_lines}
                      [--last COUNT] [-P, --p-value PVALUE] [-M MAGNITUDE] [--window WINDOW]
-                     [--orig-edivisive ORIG_EDIVISIVE]
+                     [--orig-edivisive]
                      tests [tests ...]
 
 positional arguments:
@@ -215,8 +215,7 @@ def test_otava_analyze_help_output():
                         windows are less susceptible to noise; however, a very large window may
                         cause dismissing short regressions as noise so it is best to keep it short
                         enough to include not more than a few change points (optimally at most 1)
-  --orig-edivisive ORIG_EDIVISIVE
-                        use the original edivisive algorithm with no windowing and weak change
+  --orig-edivisive      use the original edivisive algorithm with no windowing and weak change
                         points analysis improvements
 
 Graphite Options: