Chapter 3 Flashcards
1
Q
Biomedical distribution
A
- When you have two modes in a distribution
2
Q
Correlation
A
- This tells us the relationship between two variables
- Three types: positive, negative, and zero
3
Q
Correlation coefficient
A
- This is determined when describing the relationship between any two variables
4
Q
Descriptive statistics
A
- A way to collect objective data to be interpreted
5
Q
Frequency distribution
A
- It expresses how often a score occurs in a set of data
6
Q
Interval scale of measurement
A
- It is a scale of measurement in which equal differences in scores represent equal differences in amount of the property measured, but with an arbitrary zero point
7
Q
Mean
A
- It is the mathematical average of the distribution of scores
8
Q
Measures of central tendency
A
- Mean, median, and mode
9
Q
Median
A
- This is the middle score in a distribution
10
Q
Mode
A
- This is the most frequently occurring score in a distribution
11
Q
Multimodal distribution
A
- When you have three or more modes in a distribution
12
Q
Negative correlation
A
- Variables are negatively correlated when a high score on one is accompanied by a low score on the other
13
Q
Negatively skewed distribution
A
- More of the scores fall above the mean
14
Q
Nominal scale of measurement
A
- Data is categorical
- It assigns observations into various independent categories and then counting the frequency of occurrence within each of the categories creates a nominal scale.
15
Q
Normal curve
A
- A graphical representation of a normal distribution
- Sometimes called this because of its flared shape
