Experimental Design Flashcards
(8 cards)
1
Q
What is a histogram?
A
- represents data on continuous scale.
- Columns touch.
- y axis shows frequency.
2
Q
What is correlational analysis?
A
When 2 or more variables are measured in order to identify if there is a relationship.
3
Q
Advantages of correlation analysis.
A
- Can be used when would be unethical to do experiment.
4
Q
Disadvantages of correlational analysis
A
Does not show causal relationship.
May be unknown variable.
Extraneous variable may lead to false conclusion
5
Q
What is positive skewed distribution curve?
A
- Spread of frequency data forms a bell curve.
- Long tail is on the positive (right) and concentration focused on the left.
- Mode and median less mean.
6
Q
What is a negative skewed distribution curve?
A
- spread of frequency data forms a bell curve.
- Long tail is on the negative (left).
- Mode and median greater than mean.
7
Q
A
8
Q
What is po
A
