Did not the Pennsylvania state courts and the Third Circuit Court of Appeals convolute the difference between a confession's voluntariness and its reliability?

Question(s) Presented 1. Did not the Pennsylvania state courts and the Third . Circuit Court of Appeals convolute the difference between a confession’s voluntariness and __ its reliability? , . 2. Did not the Court of Appeals for the Third Circuit ; erroneously extend the reach of the Anti-Terrorism and Effective Death Penalty Act (AEDPA), where it found that Appellant was not entitled to de novo even where the state court did not adjudicate upon the merits of the prejudice prong of Petitioner’s claim of ineffective assistance of counsel?