Casey Methodological Issues

Question 1

Research method

Answer 1

Controlled conditions
Results were accurate
Detailed and objective observations of brain which enabled researchers to make conclusions
Longitudinal - See that it was characteristic over someone’s life however attrition occurred

Question 2

Data

Answer 2

Quantitative - easy to summarise and compare between conditions
Graphs were used to show difference
Easy to repeat to see comparisons

Question 3

Ethical guidelines

Answer 3

Was ethical as ppts consented, no deception was used, they weren’t harmed or under stress. So,et ppts didn’t take part in exp 2 showing they had the right to withdraw

Question 4

Internal validity

Answer 4

High as controlled EV’s etc

Question 5

Ecological validity

Answer 5

The go no go tasks wouldn’t occur in everyday lives
Being scanned in MRI isn’t everyday occurance
The strangeness of the test could’ve impacted their performance
Findings don’t tell us how people would act in normal situations

Question 6

Reliability

Answer 6

Longitudinal studies - hard to repeat as time consuming and not cost efficient
Can’t establish reliability

Question 7

Sample

Answer 7

Subject attrition occurred so not as generalisable as original sample. Only 4 females. Brains of ppl as children may be different to the ones in exp 2

Question 8

Ethnocentric

Answer 8

It isn’t as it told us about our brains which is human specific behaviour. However, it only conducted in America which means there may be diff amounts of low and high delayers in other cultures

Question 9

What exp was it

Answer 9

Quasi