1.Two group design - simplest true experiment design: one control and one treatment group​ (Bhattacherjee, 2012)​

2. Factorial design: if manipulating more than one independent ​

variable, at least four groups would be required)

(Bhattacherjee, 2012)​

3. Hybrid design: combines features of more than one design (Bhattacherjee, 2012)​

4. Quasi-experimental design: almost identical to the true experimental design but - lacks randomization (Bhattacherjee, 2012)​