-Little insight as Q structured, cant ask follow up Q
Semi-Structured
List of pre set Q, interviewer free to ask follow up Q (job interviews usually semi-structured)
+Increase validity of findings as P may be encouraged to be honest in ans thus reducing social desirability bias as have to justify views
-Harder to analyse due to some unset Q
Unstructured
New Qs developed during course of interview, begin with generalising and predetermined Q then Qs develop on basis of ans given, Interviewer encouraged to expand and elaborateon ans, like convo
+More detailed info can be gained giving better insight/understanding
+P may feel more relaxed and give more details.
-Time consuming and expensive as req trained psychologist to administer