Front

Quantitative data

Back

Number of bubbles popped

Front

Lack of validity

Back

Popping bubbles may measure boredom or anxiety

Front

Not standardised procedure

Back

Participant twisted bubble wrap

Front

Should have been counterbalanced

Back

Mix groups with cute and boring images

Front

Insufficient participants

Back

Sample size too small

Front

Example of reactivity

Back

Participants knew they were recorded

Front

Expectancy effect

Back

Participants thought they should pop bubbles