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Statistical Significance

Statistical Significance

Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...

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Using Practice Testing, Public Speaking, and Source Monitoring to Examine the Influences of Learning Strategies and Stress on Episodic Memory

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Defining stuttering for research purposes.

¹University of Illinois at Urbana-Champaign, United States; Tel Aviv University, Israel.

Journal of Fluency Disorders

|November 19, 2013

Summary

This summary is machine-generated.

This study refutes criticisms regarding stuttering epidemiology, specifically incidence and prevalence rates. The authors defend their conclusions on stuttering occurrence based on current research, countering alternative definitions.

Keywords:

Definition Incidence Stuttering

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Area of Science:

Speech and Language Pathology
Epidemiology
Developmental Disorders

Background:

A letter to the editor questioned conclusions by Yairi and Ambrose regarding stuttering incidence and prevalence.
The criticism focused on the definitions used to determine stuttering rates in epidemiological studies.

Discussion:

This response addresses and refutes the arguments presented in the letter.
The authors defend their established criteria for defining and measuring stuttering.
The validity of their epidemiological findings on stuttering is reasserted.

Key Insights:

The definition of stuttering significantly impacts reported prevalence and incidence rates.
Established epidemiological research on stuttering incidence and prevalence is defended.
Brocklehurst's proposed criteria for incidence research are deemed inadequate.

Outlook:

Further research should adhere to consistent definitions for accurate stuttering epidemiology.
Clarifying definitions is crucial for understanding the true scope of stuttering.
Continued investigation into stuttering's complex nature is warranted.