Difference between pubished and unpublished sources of data used in research

Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?

When do you think it’s best to take the psat (what grade year / when in the year)?

Victor is concerned about his constant impulsive tendencies. he thinks something must be wrong with him. what is a healthy action victor could take? take some of his friend's add medication to see if it . follow what his friend tells him he needs to do to solve his feelings. listen to a mental health professional who can guide him through his troubles. diagnose himself and take some natural supplements.