What people expect to observe often affects what they actually do observe.
Strong beliefs about what should happen in particular circumstances can
prevent them from detecting other results. Scientists know about this danger
to objectivity and take steps to try and avoid it when designing investigations
and examining data. One safeguard is to have different investigators conduct
independent studies of the same questions.
NSES Content Standard A
Science as Inquiry: Abilities necessary to do scientific inquiry Grades 5-8, page 145 Design and conduct a scientific investigation. Students should develop general abilities, such as systematic observation, making accurate measurements, and identifying and controlling variables. They should also develop the ability to clarify their ideas that are influencing and guiding the inquiry, and to understand how those ideas compare with current scientific knowledge. Students can learn to formulate questions, design investigations, execute investigations, interpret data, use evidence to generate explanations, propose alternative explanations, and critique explanations and procedures. NSES Content Standard A
NSES Content Standard A
NSES Content Standard G
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