The openly licensed slide show presentation reviews the influence of an outlier on measures of central tendency. This learning tool demonstrates methods of computation to examine and evaluate outliers in data analysis and reporting. Learners are able to view three main measures of central tendency: the mode, the median and the mean. Hyperlinks to four additional online resources are available to engage students in learning. The presentation is covered by a Creative Commons Attribution-Share Alike 3.0 License.
Type of Material:
Lecture, homework, individual assignment, team assignment.
Internet Explorer or applicable browser to download resource, PowerPoint or other presentation software.
Identify Major Learning Goals:
The student will be able to investigate and apply measures of central tendency and will be able to choose the most appropriate reporting method when outliers are present and compute the measure of central tendency.
Target Student Population:
High School, College General Ed, College Lower Division.
Prerequisite Knowledge or Skills:
Introduction to statistics, introduction to social research.
The examples are relevant in explaining the measures of central tendency. There are a few links to supplemental material.
Missing lecture notes or instructor prompts. Powerpoint is a rather passive learning tool. There are many other OERs that cover this topic in ways that engage the learner (see http://ssric.org).
Potential Effectiveness as a Teaching Tool
Reviews each measure and reporting options; integrates steps for computing and analyzing with visual aids; additional online resources are provided.
The presentation is not a stand-alone resource. Instructors and students will need to use supplemental learning materials and/or other external resources to introduce and re-enforce statistics and social research methods. There are other OERs that cover the material in a more engaging manner.
Ease of Use for Both Students and Faculty
Most can easily navigate powerpoint.
Limited information is presented with no direction for students who are unfamiliar with statistics and social research. Not all images and content is ADA accessible. There are no learning assessments embedded to measure comprehension
Other Issues and Comments:
Learners will need supplemental resources introducing statistics and social research including the scientific method and context of using and reporting data. Some examples, charts, and diagrams do not meet ADA compliance
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