2. Experimental Methods There are three main types of experiment: Laboratory Experiments Field Experiments Natural (Quasi) Experiments Only laboratory and field experiments are considered true experiments in the sense that the experimenter has direct control over the independent variable .
3. Activity: Complete an Experimental Methods Table (handout) for each of the three experimental methods. Method and Description Evaluation Example of its use Help! -Higher text book pages 131-133 -Caldwell AS level pages 197-201
![Sampling Methods ,[object Object],[object Object],[object Object],Activity: -Read through the Sampling Methods handout sheet. -Use the highlighters to emphasise the key points for each method.](https://image.slidesharecdn.com/4-sampling-experimental-methods-1229347427769284-1/85/4-sampling-experimental-methods-1-320.jpg)
