External validity Flashcards Preview

Psychology A2 Research Methods > External validity > Flashcards

Flashcards in External validity Deck (10):
1

What is external validity

being able to generalise the findings from an experiment to situations beyond the experiment

2

Is a study that is low in internal validity also low in external validity

Yes

3

What is ecological validity?

When we can generalise to different places or settings

4

What is population validity?

When we can generalise two different people or populations

5

What is temporal validity?

When we can generalise two different times

6

How is external validity enhanced?

through replication

7

Milgram's experiment concerning delivering painful shocks in a lab were replicated – What did this show

That the initial conclusion was correct: situational factors affect obedience to unjust authority

8

What was the 'holfling at al' nurses in the real world study?

Nurses were telephoned by a Dr Smith and told to administer 20 mg of a drug - This Seriously convened hospital regulations Yet 95% complied

9

What was the defence Of the nurses in the 'holfling at al' real world study?

The nurses said they obeyed because that's what doctors expect nurses to do

10

In the rank and Jacobson's study in 1977 a similar study was conducted with nurses to the halfling et al study - again they were asked to carry out an irregular order.

89% refused