Phase 1:Premise problems presented individually (10-trial blocks)a | |
a:PP1, S touching + | a-h:80% correct within one block |
b:PP2, S touching + | |
c:PP1, S moved 1/4 distance to center | |
d:PP2, S moved 1/4 distance to center | |
e:PP1, S moved 1/2 distance to center | |
f:PP2, S moved 1/2 distance to center | |
g:PP1, S moved 3/4 distance to center | |
h:PP2, S moved 3/4 distance to center | |
i:PP1, S at central well | i-j:80% correct within one block for two consecutive sessions |
j:PP2, S at central well | |
Phase 2: Alternating 10-trial blocks of premise problems; PP1 and PP2 were presented on alternating blocks; blocks of training on a given problem continued to a criterion of 8 of 10 | Phase 2:80% correct on each problem per block in one session |
Phase 3: Alternating five-trial blocks of premise problems; PP1 and PP2 were presented on alternating blocks; blocks of training on a given problem continued to a criterion of 4 of 5 | Phase 3:80% correct on each problem per alternating block in one session |
Phase 4:Pseudorandom-order presentation of premise problems; 10 trials each of PP1 and PP2 were presented in pseudorandom order | Phase 4:80% correct per problem on each of two consecutive sessions |
Phase 4a: Repeat phases 1-4 for PP3 and PP4 | Phase 4a: Corresponding criteria for phases 1-4 |
Phase 5: Partial random presentation of premise problem pairs (10-trial blocks); five trials of each PP in a given set (PP1/2 or PP3/4), presented in pseudorandom order on alternating blocks; blocks of training on a set continued to a criterion of 4 of 5 per problem | Phase 5:80% correct per problem for each pair of a given block within one session |
Phase 6: Pseudorandom presentation of all four premise problems; five trials each of PP1-PP4 were presented in pseudorandom order | Phase 6:80% correct per problem on each of two consecutive sessions |