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10. In 1974, Loftus and Palmer conducted a classic study demonstrating how the language used to ask a question can influence eyewitness memory. In the study, college students watched a film of automobile accident and then were asked, About how fast were the cars going when they smashed into each other?" Another group was asked the same question except the verb was changed to 'hit' instead of 'smashed into'. The smashed into group reported significantly higher estimates of speed than the "hit" group. Suppose a researcher repeats this study with a sample of today's college students and obtains

10. In 1974, Loftus and Palmer conducted a classic study demonstrating how the language used to ask a question can influence eyewitness memory. In the study, college students watched a film of automobile accident and then were asked, About how fast were the cars going when they smashed into each other?" Another group was asked the same question except the verb was changed to 'hit' instead of 'smashed into'. The smashed into group reported significantly higher estimates of speed than the "hit" group. Suppose a researcher repeats this study with a sample of today's college students and obtains

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 13PT
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10. In 1974, Loftus and Palmer conducted a classic study demonstrating how the language used to ask a question can influence eyewitness memory. In the study, college students watched a film of automobile accident and then were asked, About how fast were the cars going when they smashed into each other?" Another group was asked the same question except the verb was changed to 'hit' instead of са 'smashed into'. The smashed into group reported significantly higher estimates of speed than the "hit" group. Suppose a researcher repeats this study with a sample of today's college students and obtains the following results, Estimated Speed Smashed into Hit N=15 N=15 M=40.8 M=34.0 SS=510 SS=414 (a) Do the results indicate a significantly higher estimated speed for the "smashed into" group? Use a one -tailed test with a = 0.01. (b) Compute the estimates value for Cohen's d to measure the size of the effect. (c) Write a sentence demonstrating how the results of the hypothesis test and the measure of the ww effect size would appear in a research report.
Transcribed Image Text:10. In 1974, Loftus and Palmer conducted a classic study demonstrating how the language used to ask a question can influence eyewitness memory. In the study, college students watched a film of automobile accident and then were asked, About how fast were the cars going when they smashed into each other?" Another group was asked the same question except the verb was changed to 'hit' instead of са 'smashed into'. The smashed into group reported significantly higher estimates of speed than the "hit" group. Suppose a researcher repeats this study with a sample of today's college students and obtains the following results, Estimated Speed Smashed into Hit N=15 N=15 M=40.8 M=34.0 SS=510 SS=414 (a) Do the results indicate a significantly higher estimated speed for the "smashed into" group? Use a one -tailed test with a = 0.01. (b) Compute the estimates value for Cohen's d to measure the size of the effect. (c) Write a sentence demonstrating how the results of the hypothesis test and the measure of the ww effect size would appear in a research report.
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