Sarah is researching the negative impact that carbon footprint has in her neighborhood. she uses two different types of research instruments on the same target audience and arrives at a similar conclusion. which validity norm does she confirm to?

face validity
concurrent validity
predictive validity
construct validity
consistence validity

The answer is concurrent validity. If a researcher uses two different instruments to measure a construct on the same population and arrives at a similar conclusion,  this means that such instruments represent the variable they are intended to. The variable, in this case, is the impact that carbon footprint has on a particular neighborhood.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

its d i know cause i've been googling it