Loftus and palmer (1974) conducted an experiment in which participants estimated the speed of a car described as either contacting or smashing into another. to which of the following conclusions regarding eyewitness memory is this study most relevant? the presence of a weapon attracts witnesses' attention, impairing their memory. child eyewitnesses are especially suggestible. eyewitness memory can be heavily influenced by leading questions. eyewitnesses' confidence is only weakly related to eyewitness memory.