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Scientific Study

6th grade scientific study of people

QUALITATIVE OBSERVATION describes properties or characteristics (qualities)used to identify - often result of putting things in categories
QUANTITATIVE OBSERVATION describes values that have been measured or counted - quantity -- number or amount
INFERENCE logical conclusion
PARTS OF A WELL-DESIGNED INVESTIGATION 1. testable question 2. hypothesis 3. procedure 4. variables - dependent and independent 5. materials and methods 6. trials and data 7. conclusion and results
HYPOTHESIS - IS IT A GUESS? Not a Guess!! an educated prediction that can be tested
PLACEBO contains no active ingredient but believed to contain active ingredient
PLACEBO EFFECT response when no active ingredient given
PLACEBO GROUP (CONTROL GROUP) - WHY HAVE ONE? provides a group for comparison to experimental group - basis for comparison
INDEPENDENT VARIABLE variable that is changed in an experiment
DEPENDENT VARIABLE variable that is measured in an experiment
QUALITATIVE VS. QUANTITATIVE qualitative is without measurement -- quantitative is with measurement
REPRODUCIBLE DATA - WHY IS THIS IMPORTANT? experiment produces similar results each time - shows data is accurate
Created by: EDies81