Features of an experiment that could cause the participants to guess the aim of the study and to behave in an unnatural way ie to help or hinder the outcomes

(a)  

The variable that is manipulated

(a)  

The variable that is measured

(a)  

To what extent can the findings be generalised to real life?

(a)  

Other variables that could affect the DV but which can be controlled

(a)  

Where the action/behaviour/wording of the experimenter unconsciously affects participant behaviour ie non-verbal communication or emphasising particular phrases in their instructions

(a)  

Participants are chosen for an experiment in a way in which they all have an equal chance of being selected.

(a)