Loftus and Palmer

Loftus and Palmer

1. Experiment One

   • Method: Lab Experiment
     • Why can this be considered an experiment?... It was done in an artifical setting where they manipulated one variable to see the effect in another.
   • IV: verb used... smashed, hit, collided,contacted,bumped
   • DV: estimate of speed in mph
   • Independent measures design.
   • Sample
     • 45 students for the University of Washington
     • Opportunity sample: the sample was of university student available at the time of the study. Many of the sample were psychology students.
   • Procedure
     • 1. All Participants were shown clips of a car accident and were given a questionnaire to complete after each clip.
       • 2. There were two parts to each questionnaire.
         • 3. Participants are divided into five groups and asked a series of questions about the clip including the critical question.
           • Critical Question: "about how fast were the cars travelling when they............. each other?"
             • One of the verbs (IV) was used in the question.
   • Results
     • Quantitative data only