# Communication Studies (CMNS) 308

### Understanding Statistical Evidence (Revision 5)

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Delivery Mode: Individualized study online

Credits: 3

Area of Study: Social Science

Prerequisite: None; however fundamental mathematical skills are required. The university offers an online test containing 70 questions that will help you assess your mathematical skills. If you are unsure about your ability to complete CMNS 308 / HSRV 308, you may wish to register in MATH 100 (a non-credit course) designed to assist students in strengthening their mathematical skills. You may also wish to contact the course coordinator for CMNS 308.

Precluded course: CMNS 308 may not be taken for credit if credit has already been obtained for HSRV 308.

CMNS 308 has a Challenge for Credit option.

## Overview

Many people working in journalism, public relations and other communications fields need to be able to understand how statistics are used in order to present information and frame arguments. This course is designed for those who want to become critical consumers of statistical evidence. It emphasizes a conceptual rather than a computational approach to learning statistics. Using examples taken from popular media, the course explains how people use and abuse statistics for purposes of persuasion and influence.

## Course Outline

There are eight units in the course.

Unit 1: Why Study Statistics?

The history of statistics, the importance of studying statistics, and the scope, structure and mechanics of the course.

Unit 2: The Significance of Sampling

Sampling procedures used to draw appropriate samples in order to make reliable and valid statements about populations; learn to evaluate the results of surveys and polls.

Unit 3: Understanding Scientific Experiments

Introduction to experimental designs and their implications for making causal statements; recognizing elements of bias in designs.

Unit 4: Measurement

A focus on the reliability and validity of the numbers generated in research; making informed judgements about reported conclusions based on numbers.

Unit 5: Describing Distributions

The ways numbers are organized and displayed, and the importance of measures of central tendency, dispersion or variability, and “normal” distributions; making accurate interpretations.

Unit 6: Understanding Relationships

Relationships between measures, or variables; understanding the results of multiple-variable research and the validity of related conclusions.

Unit 7: Probability: The Language of Chance

The language of probability, or the degree of likelihood of the occurrence of an event; the importance of probability for statistical tests of significance.

Unit 8: Inference: Conclusions with Confidence

Methods for drawing formal conclusions from data; making informed judgements about the use and abuse of inferential techniques. Unit 8 summarizes the course.

## Evaluation

To receive credit for CMNS 308, you must complete all of the assignments, achieve a grade of at least 50 percent on the Final Examination, and an overall course grade of at least a “D” (50 percent).

Activity Weighting
Assignment 1 (after Unit 2) 6%
Assignment 2 (after Unit 4) 6%
Online Quiz 1 (after Unit 4) 4%
Essay (after Unit 4) 6%
Assignment 3 (after Unit 5) 6%
Assignment 4 (after Unit 6) 6%
Online Quiz 2 (after Unit 6) 4%
Assignment 5 (Unit 7) 6%
Assignment 6 (Unit 8) 6%
Online Quiz 3 (after Unit 8) 4%
Course End Project (after Unit 8) 14%
Final Examination 32%
Total 100%

To learn more about assignments and examinations, please refer to Athabasca University's online Calendar.

## Course Materials

### Textbooks

Crossen, Cynthia. (1994). Tainted truth: The manipulation of fact in America. New York: Simon and Schuster.

Moore, D. S. & Notz, W. I. (2014). Statistics: Concepts and controversies (8th ed.). New York: W. H. Freeman.

## Challenge for Credit Course Overview

The Challenge for Credit process allows students to demonstrate that they have acquired a command of the general subject matter, knowledge, intellectual and/or other skills that would normally be found in a university level course.

Full information for the Challenge for Credit can be found in the Undergraduate Calendar.

## Challenge Evaluation

To receive credit for the CMNS 308 challenge registration, you must achieve a grade of at least “D” (50 percent) on the examination.

Activity Weighting
Part I: Take home essay exam 50%
Part II: Paper exam 50%
Total 100%

### Undergraduate Challenge for Credit Course Registration Form

Athabasca University reserves the right to amend course outlines occasionally and without notice. Courses offered by other delivery methods may vary from their individualized-study counterparts.

Opened in Revision 5, February 05, 2016