Two stimuli must differ by a constant minimum percentage (rather than a constant amount), to be perceived as different. You will probably not notice an increase in weight if you add a 1/4 lb sandwich to a heavy, 20 lb backpack. On the other hand, if you add the sandwich to a pack that only weighs 2 lbs, you are sure to notice the increase in weight. this illustrates:.

How can congress clarify parts of the constitution that are unclear?

The economy of the united states is best described as

The following headline is simple: poll: transit tax-supported 3 to 1 . its meaning can be changed in context by adding a subheading: poll: transit tax-supported 3 to 1 -- large leads have disappeared before now you try it. use the simple statement below or make up your own statement. add another statement so that the context changes the meaning of the first statement. what a great day!