sentence: Psychologists use surveys to ask people how they feel and what they think.
sentences_before: Scientific psychologists use many different tools as part of their daily work and to carry out their studies.
sentences_after: They may use special devices to look at the brain and to see what it's doing. Psychologists also often use computers so that they can carefully measure when and how people behave, usually in response to pictures, words, symbols, or other stimuli. Psychologists also use statistics to help them analyze the data that they get from their experiments.
concept_name: psychologist
headings: Psychology Methods Scientific approaches