Complex sentence: For a participant to'pass' this test, he must answer the "Belief Question" correctly by indicating that Sally believes that the marble is in her own basket: this answer is continuous with Sally's perspective, but not with the participant's own.
Split into simpler sentences: For a participant to'pass' this test, he must answer the Belief Question correctly by indicating that Sally believes that the marble is in her own basket. This answer is continuous with Sally's perspective, but not with the participant's own.