instruction:
In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
question:
Question: What characteristic is true with respect to the tests referred to the criterion?
Options: <0> The purpose is to describe the subject in the continuum of some trait. <1> The objective is to maximize individual differences. <2> The scores obtained only have meaning in relation to the results of the normative group. <3> They allow to interpret the scores in absolute sense, without reference to any group. <4> The items are usually derived from some feature theory.
answer:
psychology

question:
Question: The reactivity of various carbonyl groups is determined by their relative stability. The order of reactivity towards nucleophiles is:
Options: <0> Amides> Esters> Ketones> Aldehydes. <1> Aldehydes> Ketones> Esters> Amides. <2> Amides> Ketones> Aldehydes> Esters. <3> Aldehydes> Esters> Ketones> Amides. <4> Amides> Ketones> Esters> Aldehydes.
answer:
chemistry

question:
Question: In general, allosteric enzymes:
Options: <0> They join the effectors in the active center. <1> They form covalent bonds with their negative effectors. <2> They originate hyperbolic curves of speed versus substrate concentration. <3> They change their conformation when they join the effectors. <4> They are irreversibly modified when they are inhibited.
answer:
biology