Totten: Review Experimental Design

A determination about what a scientist thinks will happen. Uses IF...THEN... format!

• Qualitative

• Quantitative

• Hypothesis

• Inference

Using prior knowledge + observations to draw conclusions

• Hypothesis
• Inference
•  Observation
• Prediction

To make these you use the 5 senses:  touch, taste, smell, hear, see

• Observations
• Inferences
• Predictions
• Controls

This type of VARIABLE is kept the SAME for both experimental and Control Groups

• Independent
• Dependent
• Control (Constant)
• Inference

This VARIABLE is what you measure. It shows the EFFECT of what you are testing. 

• Independent
• Dependent
• Control
• Observation

This VARIABLE is the 1 FACTOR YOU CHANGE in an experiment. It is what you are testing. It CAUSES something to happen. 

• Independent 
• Dependent
• Control 
• Qualitative

The classroom has 1 teacher and 27 students. WHAT KIND OF OBSERVATION IS THIS?

• QUANTITATIVE
• QUALITATIVE
• INFERENCE

Our classroom has light green walls and a tan colored floor. WHAT KIND OF OBSERVATION IS THIS?

• QUANTITATIVE
• QUALITATIVE
• INFERENCE

What is the INDEPENDENT VARIABLE in this hypothesis?
If a dog is given a bath using DAWN dish soap,  THEN the # of fleas will decrease. 

• the dog
  QUANTITATIVE
• bath in DAWN dish soap
• #  of fleas

What is the DEPENDENT VARIABLE in this hypothesis?
If a dog is given a bath using DAWN dish soap,  THEN the # of fleas will decrease. 

• the dog
  QUANTITATIVE
• bath in DAWN dish soap
• #  of fleas