Designing questionnaires and interviews (attitudes re social psychology) validating for reliability.
Testing for personality traits/designing personality trait questionnaires (personality) ditto.
Observing children, for example, playing at an adjacent nursery designed for this (child development).
Effects of alcohol on reaction times - re subjects attached to an electroencephalogram (physiology)
What part of a memory test do people remember best (Ebbinghaus and co.)
The pattern of forgetting (ditto)
The link between having an audience and effect on performance (ditto)
Transactional analysis (economics option)
Cognitive dissonance and rationalisation (designing how to measure)
Lie detector type stuff - attach fingertip to ECG machine
Eye witness reliability (criminology option)
Linguistics (Chomsky)
Eye to hand reaction; stimulus/response (physiology)
Group dynamics
Shook hands with
Stanley Milgram at graduation ceremony. (We weren't allowed to replicate his experiments [giving subjects electric shocks to see how well they would obey authority] for ethical reasons.
Plus the additional dissertation, roughly 30,000 words, typed up professionally, bound and archived for future researchers.