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: The content validity of an evaluation instrument refers to: 
 Options:  <0> The evidence obtained by factor analysis. <1> The concurrence of measures. <2> The adequacy in the establishment of inferences. <3> The relevance and representativeness of its items. <4> The significant relationships with other measures.
answer:
psychology


question:
Question: For the analysis of traces of inorganic constituents, in samples of organic nature, a preliminary treatment of the sample is needed, which normally consists of: 
 Options:  <0> Dissolve the sample in cold water. <1> Dissolve the sample in hot water. <2> Dissolve the sample between 30 and 70 ºC. <3> Heat the sample between 400 and 700 ºC. <4> Heat the sample in 0.1 M hydrochloric acid.
answer:
chemistry


question:
Question: Question linked to image nº6 29-year-old woman smoker. Consultation for nocturnal cough and dyspnea on exertion. Provides a chest CT performed at your health center (see image). What is the radiological diagnosis of suspicion? 
 Options:  <0> Mediastinal broadening. <1> Bibasal interstitial infiltrate. <2> Aortic dilatation <3> Atelectasia lobar. <4> Growth of right cavities.
answer:

medicine