Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
PSCI 2702
Quantitative Research Methods
| Term | Definition |
|---|---|
| Nominal Level of Measurement | Cannot rank or do mathematical calculations. Can only find mode. Example: sex (female or male) |
| Ordinal Level of Measurement | Can rank and compare variables. Can only calculate median and mode. Example: Education levels |
| Interval Level of Measurement | Can calculate mode, median and mean. All calculations are possible Example: Income |
| What is the mode? How do you find it? | is the most frequent value example: ddccaaa - A is the mode. If these are grades, this shows that it favors smarter students. |
| What is the median? How do you find it? | is the exact middle of the distribution. N = number of values (state if its even or odd number of values) RANK order before you calculate! |
| The Normal Distribution | Where mean = median = mode Note: the tails of the curve represent the outliers with extreme scores for both measures and therefore the highest frequency is clustered around the average. |
| Positively Skewed Distribution | Where mean>median>mode Note: long tail to the right means extreme values where this inflates the mean. This means that median encompasses average better than mean. |
| Negatively Skewed Distribution | Where mean<median<mode Note: long tail to the left means extreme low values which inflate the mean thus we use the median as a measure of central tendency. |
Created by:
avelineking
Popular SAT sets