Figure
Figure 3 — Fixed-panel cooperation across the represented treatment
Condition means with conservative exact intervals across the four repeated-game cells.
Pool means 0.349, 0.427, 0.432, 0.505 against the preregistered broad-reference band [0.36, 0.63]; only the S2-absent δ=.10 cell misses, by 0.011. Error bars are conservative exact condition intervals; lines connect conditions for orientation only.