3.2.2 Test-Retest Reliability
Measures of reliability derived from test-retest reliability indicated
that the STP (baseline-to-peak) approach produced reliable measures of
amplitude, with coefficient values between .87 and .91 compared to .60
and .94 for the STW approach. The values were higher for the STP
approach than the STW approach for all components except P2 and N2,
which were both close in value (Table 8). Latencies for the STP approach
yielded values between r = .64 and r = .74.