People assume that the misleading information is true. Or some kind of demand characteristic - doing what the experimenter expects. Psychologists have made recommendations of how eyewitness accounts should be collected by law enforcement officials. The same thing can happen with identification of criminals from mug shots or lineups. For example, if you described the criminal as being short with black hair, the functional size of the lineup is the number of people in the lineup who are short with black hair, regardless of how many people are in the lineup.
Prospective memory is often more about remembering when to do something vs remembering what to do.
Experiment in which people had to remind the experimenter to pass on a message vs remembering the message. Often there are not cues in the environment to remind us to do things in the future, so we create them. E.g. by leaving ourselves notes, keeping a diary etc. Distinguished between Pulses and Steps . Pulses are when we have to remember to do things at a certain time.