The construct validity of Alva's logic test was estimated using a sample of 39 participants (64.1% male, 35.9% female) completing both Alva’s logic test and the Figure Reasoning Test Form A (Daniels, 1996). The observed correlation was r=0.77, which is considered Excellent by the European Federation of Psychologists’ Associations (EFPA).

You can find EFPA's standards for reviewing psychological assessments here.

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