Dr. Vance is investigating the effect of ambient background noise on reading comprehension. She recorded the comprehension test score (out of 50) of participants under two conditions. The participants who read with low-frequency white noise playing had a mean score of 34.2, while the participants who read in complete silence had a mean score of 41.5. Different participants were randomly allocated to each condition.
State which statistical test Dr. Vance should use to analyse her data.
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.