ACIDTEST

• Conclusive trial

• Credibility determiner

• Critical evaluation

• Critical step

• Critical step in analysis

• Critical trial

• Crucial appraisal

• Crucial challenge

• Crucial qualifier

• Crucial trial

• Decisive assessment

• Decisive exam

• Decisive experiment

• Decisive proof

• Defining challenge

• Final determinent

• Merry Prankster party

• Proof provider

• Quality prover

• Rigorous scrutiny

• Telling trial

• The Electric Kool-Aid ___ (1967 Tom Wolfe chronicle)

• True trial

• Where the rubber meets the road, so to speak