Wundt tried to use CONTROLLED procedures in order for it to be REPLICABLE but his methods were rather SUBJECTIVE-there wasn't much reliability as other psychologists didn't get the same results and it is very difficult to study UNOBSERVABLE behaviour
FURTHERMORE other psychologists such as PAVLOV made greater contribution to the development of as they Produced RELIABLE findings that were GENERALISABLE far more in keeping with science
Introspection

Used in MODERNSCIENTIFIC psychological research
CSIKSZENTMIHALYI and HUNTER used introspection to measure happiness

2003
Introspection has been questioned for its VALIDITY
NISBETT and WILSON proposed that people were very unaware of factors that were influential in their choice of consumer item - so does self report actually tell us anything about what's going on in our minds?
