A common threat to internal validity when measuring participants' ...

[leilurhhh]

A common threat to internal validity when measuring participants' attitudes about different racial groups as the dependent variable is the effect of
 
  a) reactive measures
 b) nonreactive measures.
 c) practice effects.
 d) maturation.

Question 2

The smell of chalk dust always makes me think of my first day of school. The neurological activity that originally encoded this recollection most likely depended on which of the following structures?
 
  a) The amygdala and the hippocampu
 b) The thalamus and the hypothalamus
 c) The corpus callosum and the parietal lobe
 d) The temporal and frontal lobes

[ErinKing]

Answer to Question 1

A

Answer to Question 2

A

[leilurhhh]

Thanks for the timely response, appreciate it

[Chelseyj.hasty]

Wow, this really help