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29 Jun 2025

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How Questions Can Trick Your Memory: A Study from 1975

The effects of leading questions on eyewitness recallcan significantly... Show more

misleading information
| Loftus & Palmer (1975)
AIM: to investigate the effects of leading questions on the accuracy of an eye-
witnesses im

Further Research and Evaluation

Loftus and Palmer conducted additional research to support their findings on the role of misleading questions in reducing eyewitness testimony accuracy. In a follow-up study, they showed 150 students a video of a car crash and divided them into three groups: one asked about "smashed" cars, another about "hit" cars, and a control group not asked any questions.

Example: A week later, when asked if they saw broken glass whichwasnotpresentinthevideowhich was not present in the video, participants in the "smashed" condition were twice as likely to report false memories of broken glass.

This further demonstrates how misleading information and eyewitness memory accuracy are intertwined, as post-event questioning can create false memories.

However, the research has been criticized for lacking mundane realism and ecological validity.

Vocabulary: Ecological validity refers to the extent to which research findings can be applied to real-world situations.

Foster et al. 19941994 found that participants who believed they were watching a real-life robbery and thought their responses would influence a trial were more accurate in identifying the robber.

Highlight: The artificial laboratory setting of Loftus' study may limit its applicability to real-life eyewitness testimony situations.

This criticism suggests that the findings from laboratory research settings may not fully represent real-life eyewitness behavior, potentially weakening the study's support for the role of misleading information in affecting eyewitness testimony accuracy.

Quote: "It can be argued that the findings from artificial laboratory research settings such as Loftus' study may not be applicable to real-life EWT behaviour."

Despite these limitations, the Loftus and Palmer 1975 eyewitness testimony study remains a seminal work in understanding the effects of leading questions on eyewitness recall and the impact of misleading information and eyewitness memory accuracy.

misleading information
| Loftus & Palmer (1975)
AIM: to investigate the effects of leading questions on the accuracy of an eye-
witnesses im

Loftus & Palmer's Study on Misleading Information

The Loftus and Palmer 1975 eyewitness testimony study aimed to investigate the effects of leading questions on eyewitness recall. This laboratory experiment involved 45 students divided into five groups, who watched seven films of traffic accidents. After each film, participants completed questionnaires containing a critical question about the cars' speed during the collision.

The researchers manipulated the verb used in the question, employing "hit," "smashed," "collided," "bumped," or "contacted." The findings revealed a significant correlation between the verb used and the estimated speed, with "smashed" yielding the highest speed estimates 40.8mph40.8 mph and "contacted" the lowest 31.8mph31.8 mph.

Highlight: The choice of verb in the question significantly influenced participants' speed estimates, demonstrating how leading questions can affect eyewitness memory.

Definition: Misleading information refers to post-event details that can alter an individual's original memory of an event.

Example: When asked "How fast were the cars going when they smashed into each other?", participants estimated higher speeds compared to when the word "contacted" was used.

The researchers concluded that the form of questioning can significantly impact a witness's answer. Leading questions provide post-event information that can be stored and affect the original memory, potentially reducing the accuracy of eyewitness testimony.

Vocabulary: Eyewitness Testimony EWTEWT - The account given by an individual who has observed an event, often used as evidence in legal proceedings.



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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

 

Psychology

370

29 Jun 2025

2 pages

How Questions Can Trick Your Memory: A Study from 1975

The effects of leading questions on eyewitness recall can significantly impact the accuracy of eyewitness testimony. The Loftus and Palmer 1975 eyewitness testimony study demonstrated how misleading information and eyewitness memory accuracy are closely linked.

Key findings:

  • Leading questions can... Show more

misleading information
| Loftus & Palmer (1975)
AIM: to investigate the effects of leading questions on the accuracy of an eye-
witnesses im

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Further Research and Evaluation

Loftus and Palmer conducted additional research to support their findings on the role of misleading questions in reducing eyewitness testimony accuracy. In a follow-up study, they showed 150 students a video of a car crash and divided them into three groups: one asked about "smashed" cars, another about "hit" cars, and a control group not asked any questions.

Example: A week later, when asked if they saw broken glass whichwasnotpresentinthevideowhich was not present in the video, participants in the "smashed" condition were twice as likely to report false memories of broken glass.

This further demonstrates how misleading information and eyewitness memory accuracy are intertwined, as post-event questioning can create false memories.

However, the research has been criticized for lacking mundane realism and ecological validity.

Vocabulary: Ecological validity refers to the extent to which research findings can be applied to real-world situations.

Foster et al. 19941994 found that participants who believed they were watching a real-life robbery and thought their responses would influence a trial were more accurate in identifying the robber.

Highlight: The artificial laboratory setting of Loftus' study may limit its applicability to real-life eyewitness testimony situations.

This criticism suggests that the findings from laboratory research settings may not fully represent real-life eyewitness behavior, potentially weakening the study's support for the role of misleading information in affecting eyewitness testimony accuracy.

Quote: "It can be argued that the findings from artificial laboratory research settings such as Loftus' study may not be applicable to real-life EWT behaviour."

Despite these limitations, the Loftus and Palmer 1975 eyewitness testimony study remains a seminal work in understanding the effects of leading questions on eyewitness recall and the impact of misleading information and eyewitness memory accuracy.

misleading information
| Loftus & Palmer (1975)
AIM: to investigate the effects of leading questions on the accuracy of an eye-
witnesses im

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Loftus & Palmer's Study on Misleading Information

The Loftus and Palmer 1975 eyewitness testimony study aimed to investigate the effects of leading questions on eyewitness recall. This laboratory experiment involved 45 students divided into five groups, who watched seven films of traffic accidents. After each film, participants completed questionnaires containing a critical question about the cars' speed during the collision.

The researchers manipulated the verb used in the question, employing "hit," "smashed," "collided," "bumped," or "contacted." The findings revealed a significant correlation between the verb used and the estimated speed, with "smashed" yielding the highest speed estimates 40.8mph40.8 mph and "contacted" the lowest 31.8mph31.8 mph.

Highlight: The choice of verb in the question significantly influenced participants' speed estimates, demonstrating how leading questions can affect eyewitness memory.

Definition: Misleading information refers to post-event details that can alter an individual's original memory of an event.

Example: When asked "How fast were the cars going when they smashed into each other?", participants estimated higher speeds compared to when the word "contacted" was used.

The researchers concluded that the form of questioning can significantly impact a witness's answer. Leading questions provide post-event information that can be stored and affect the original memory, potentially reducing the accuracy of eyewitness testimony.

Vocabulary: Eyewitness Testimony EWTEWT - The account given by an individual who has observed an event, often used as evidence in legal proceedings.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.

Where can I download the Knowunity app?

You can download the app from Google Play Store and Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

Best app on earth! no words because it’s too good

Thomas R

iOS user

Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.

Basil

Android user

This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.

Rohan U

Android user

I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.

Xander S

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now

Paul T

iOS user