Ap Psychology Experiment

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Experiment Investigating word change on memory
Isabel Cullinane
Colegio Franklin Delano Roosevelt
Psychology (SL)
Daniel Swanson

Abstract: This investigation is based on the Loftus and Palmer experiment. The results of the original experiment were that hit had a mean speed of 34.0 and smashed had a mean speed of 40.5. Our experiment used 16 students from a Spanish B class at FDR and we had two conditions. The original had more people and more conditions. Our results differed in that the mean speed of hit was 35.25 and the mean speed of hit was 37.5.

Table of Contents

Introduction
Methods
Design
Participants
Materials
Procedure
Raw data
Results

Introduction:
The Loftus and Palmer eyewitness study …show more content…

Using a sample design also decreased the probability of the Hawthorne or Screw-you effect as each individual was unaware of the other condition. Participants were all 11th graders at Colegio Franklin Delano Roosevelt in Lima Peru, between the ages of 16 and 17, in a Spanish class where there was a total of 19 people. There were 16 participants overall and 8 in each condition, with 4 boys and 4 girls to avoid gender bias.
An independent variable also know as the manipulative variable is something the experimenter has control over and can be manipulated. The dependent variable is what is affected and is measured in the experiment. In this investigation, our independent variable were the questions that were asked to each participant and our dependent variable were their responses. The participants each got the same question About how fast were the cars going when they hit each other? but the verb hit changed to smashed for the second condition. This question was asked because it was the same one Loftus and Palmer asked and in order to stay true to the original study we decided to deviate as less as possible. The participants responses were …show more content…

We are psychology students and we will be conducting a psychological study for our IB Psychology class. Before we begin we would like to let you know that you have the right to withdraw at anytime. In this study you will be asked to watch a short clip and then answer some questions about it. We would appreciate your participation and ask for silence during the experiment. If there are any psychology students or people who would not like to participate could you please follow us outside?
If you are a psychology student could you please come over here. Are you familiar with the Loftus and Palmer eyewitness experiment?
If you are then we ask that you stay out here until the experiment is over. If you would just not like to participate then please stay out here with them.
Sorry for the delay we will now begin the experiment but if you could first sign these forms (give consent forms). We will collect them at the end of the experiment. Now we will start the video and then give you a sheet of paper for you to answer questions.

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