Replications are designed to ensure that - the original study was high in psychological realism - the original results can be obtained in different populations and in different settings - the original study was internally valid ethical procedures are always followed

the original study was internally valid

Explanation:

According to my research on the scientific method, I can say that based on the information provided within the question replications are used to ensure that the original study was internally valid. Something being internally valid means that the cause and effect of that study is correct. That is where replication comes into play, since by being able to replicate the results of an experiment various times using the same procedure and variables then it proves the validity of the experiment's results.

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all cities have a governor

all cities are in states or provnies then country

all cities have people

difference

some are rich

some are poor

some are average