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In psychology and cognitive science, a memory bias is a cognitive bias that either enhances or impairs the recall of a memory (either the chances that the memory will be recalled at all, or the amount of time it takes for it to be recalled, or both), or that alters the content of a reported memory. There are many types of memory bias, including:
A suggestive question is one that implies that a certain answer should be given in response, [1] [2] or falsely presents a presupposition in the question as accepted fact. [3] [4] Such a question distorts the memory thereby tricking the person into answering in a specific way that might or might not be true or consistent with their actual feelings, and can be deliberate or unintentional.
Biases that affect memory, [18] such as consistency bias (remembering one's past attitudes and behavior as more similar to one's present attitudes). Biases that reflect a subject's motivation, [19] for example, the desire for a positive self-image leading to egocentric bias and the avoidance of unpleasant cognitive dissonance. [20]
Leading questions Refers to how wording of questions can influence how an event is remembered. This can result from a misinformation effect or an imagination inflation effect. [60] The misinformation effect occurs when information is presented after the events in question have occurred which leads to memory errors in later retrieval. [61]
This type of bias is much more prevalent in questions that draw on a subject's opinion, like when asking a participant to evaluate or rate something, because there generally is not one correct answer, and the respondent has multiple ways they could answer the question. [4] Overall, this bias can be very problematic for self-report researchers ...
A loaded question is a form of complex question that contains a controversial assumption (e.g., a presumption of guilt). [1] Such questions may be used as a rhetorical tool: the question attempts to limit direct replies to be those that serve the questioner's agenda. [2] The traditional example is the question "Have you stopped beating your wife?"
A leading question is a question that suggests a particular answer and contains information the examiner is looking to have confirmed. [1] The use of leading questions in court to elicit testimony is restricted in order to reduce the ability of the examiner to direct or influence the evidence presented. Depending on the circumstances, leading ...
Participation bias or non-response bias is a phenomenon in which the results of studies, polls, etc. become non-representative because the participants disproportionately possess certain traits which affect the outcome. These traits mean the sample is systematically different from the target population, potentially resulting in biased estimates.