On using SOLO verbs to assess student forum posts
You need to make sure that your explanations justify this rating at the appropriate level, and typically this means that this answer FAILS to reach the next higher level for a specific reason.
For Multi-structural, you state “But he failed to connect it with his own situation to have a deeper reflection.” Reflection is a key behavior for the Extended Abstract level, not for the one above Multi-structural, which is Relational. To fail to reach Relational, typically an answer will list, classify, or describe, but not analyze or relate key elements together to demonstrate a coherent understanding of the whole.
You need to apply this same methodology to your justifications of each example answer.