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Embracing Diversity

Lesson 6: Different Sized Samplings
Topic: Language Idioms & Spreadsheets/Statistics

Part of:
Unit: Embracing Diversity


  • Focus: Students often possess the misconception that if an event is observed once then it can be generalized to be true always. Scientists know that experiments need to be repeated to ensure validity. Likewise, the accuracy of data collected from surveys increases with the number of survey participants. This lesson is designed for students to discover that the number of persons surveyed affects the results and conclusions drawn from a survey and that valid conclusions require a large number of entries.

Activities | Introduction | Objectives | Resources & Web Sites


Activities

Activity 6A: Sampling and Averages

(computer skill, mean, calculation, spreadsheet, cross cultural adaptation, hhie-s, hearing handicap inventory elderly, sampling, frequency)
 
 
 


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Introduction

Embracing Diversity ends with lesson 6, “Different Sized Samplings.” The central goal of this lesson is to demonstrate the central limit theorem. Students calculate averages of different sets of random samples from the larger 100 observation HHIE-S database. They should observe that as the size of the sample increases, the variation between the averages of the samples decreases toward a central limit, i.e., the mean of the whole data set.

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Objectives

Students will be able to:

  • calculate the mean, average, of given data sets
  • tally the scores of a given data set
  • draw conclusions about the size of a data set

Resources & Web Sites

Neuroscience for Kids: Statistics http://faculty.washington.edu/chudler/statistics.html

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