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Scientific Study
6th grade scientific study of people
Question | Answer |
---|---|
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 |