Online Learning Effectiveness Research

Russell, Thomas (1999) “The No Significant Difference Phenomenon."

Read a summary of this online learning effectiveness study, or go directly to the link (above) for complete details of this study.


This site provides selected entries from the book "The No Significant Difference Phenomenon" as reported in 355 research reports, summaries and papers - a comprehensive research bibliography on technology for distance education. This 1999 book was compiled by Thomas L. Russell, is fully indexed, and includes a foreword by Richard E. Clark. Previous editions of this scholarly study were provided electronically; this fifth edition is the first edition available in print.

Sample Entry:

Johnson, M., Introductory Biology Online: Assessing Outcomes of Two Student Populations
Journal of College Science Teaching - February, XXXI, number 5, pp 312-317

"no significant differences were found in outcomes for students in the two modes of instruction... Based on post-tests, online students were as successful as on-campus students at acquiring an understanding of biology content, acquiring graphing skill, increasing reasoning ability, and developing positive attitudes toward science...

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