what do these things mean influence of anxiety, authorial intent, positioning a responder, litery theory?
It would help to have the context for these phrases - they may have varying meanings.
"influence of anxiety" - the effect on emotion/behaviour of an anxious state.
"authorial intent" - what is intended by the writer in what / how something is written
"positioning a responder" - This really does need context
"literary theory" = theory/theories relating to literature