| A | B |
|---|
| confirmed | correct hypothesis |
| placebo | fake drug |
| correlation | linked together |
| cause & effect | one leads to the other |
| case study | in-depth investigation of individual |
| longitudinal study | observations over an extended period |
| mean | average value |
| median | middle distribution |
| mode | greatest frequency |
| data | results |
| sample | subset of population |
| theory | conclusion statement about data |
| hypothesis | assumption of cause & effect or correlation |
| reliability | same results will occur every time |
| validity | measures what it says it is |
| dependent variable | what you are studying |
| independent variables | will cause a change in what you are studying |
| control group | independent variable will not be applied to them |
| bell curve | frequency distribution |
| stratified sample | subgroups are in proportion to larger population |
| hind-sight bias | we understand after the fact |
| perfect positive correlation | straight line up |
| perfect negative correlation | straight line down |
| scatter graph | no correlations |
| random sample | every individual has a chance to participate |
