What infant-perception research technique involves giving an infant a choice of what object to look at and then looking for a reliable preference for one stimulus over the other?

Preferential looking technique

Explanation:

Through the preferential looking technique, the perceptual abilities of infants who are unable to speak are evaluated. If the stimulants are different, generally, the infants would prefer to focus on the more interesting stimulant than on the less interesting stimulant, as long as the two stimulants are shown at the same time. It is assumed that the stimulant which is observed more frequently is the one the infant prefers. The technique reveals or shows the capacity the infant has to discriminate between stimulants.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.

answer; attention;