The document discusses eyewitness testimony (EWT) and several studies that have investigated factors that can impact the accuracy of EWT. It summarizes a key 1974 study by Loftus and Palmer that found leading questions can distort eyewitnesses' recall of details, with those asked if a car "smashed" providing higher speed estimates. Later studies also found weapons focus and misleading post-event information can negatively impact accuracy. However, EWT in real-life situations like armed robberies has been found to be more reliable, though individual differences like age, anxiety, and alcohol consumption are also factors.