n=500 controls: paired net-effect significant (loop vs untrained merge 17-4, p=0.007); ladder and net accounting finalized

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

results-loop/stats_final.json

@@ -1,4 +1,40 @@
 {
+ "MBPP untrained merge k=4 (n=500 rerun)": {
+  "overall": {
+   "acc": 0.502,
+   "n": 500,
+   "ci": [
+    0.458,
+    0.546
+   ]
+  },
+  "hard": {
+   "acc": 0.2,
+   "n": 55,
+   "ci": [
+    0.116,
+    0.324
+   ]
+  }
+ },
+ "MBPP trained FF k=1 (n=500 rerun)": {
+  "overall": {
+   "acc": 0.536,
+   "n": 500,
+   "ci": [
+    0.492,
+    0.579
+   ]
+  },
+  "hard": {
+   "acc": 0.2727272727272727,
+   "n": 55,
+   "ci": [
+    0.173,
+    0.402
+   ]
+  }
+ },
  "MBPP loop s0 k=0 (base)": {
   "overall": {
    "acc": 0.518,
@@ -275,6 +311,30 @@
    "b_only": 22,
    "p": 5.7220458984375e-06
   },
+  "loop k=4 vs UNTRAINED merge k=4, hard (net effect)": {
+   "n": 55,
+   "a_only": 4,
+   "b_only": 17,
+   "p": 0.007197380065917969
+  },
+  "loop k=4 vs UNTRAINED merge k=4, overall": {
+   "n": 500,
+   "a_only": 29,
+   "b_only": 46,
+   "p": 0.06394991646706696
+  },
+  "trained FF vs UNTRAINED merge, hard": {
+   "n": 55,
+   "a_only": 7,
+   "b_only": 11,
+   "p": 0.480682373046875
+  },
+  "distill k=1 vs UNTRAINED merge k=4, hard": {
+   "n": 55,
+   "a_only": 3,
+   "b_only": 15,
+   "p": 0.007537841796875
+  },
   "distill k=1 vs loop k=4, overall": {
    "n": 500,
    "a_only": 33,