1. Communication in Small Groups
Chapter 3 – Part 2

2. Juries in the EST Framework
Trial evidence,
jury instruction
Jury size and
decision rule
Juror beliefs,
values, and
experiences
Jury verdict
or finding
Subjective
Assessments
of jury service
Narrative
processing
Majoritarianism,
argument
distribution,
momentum
Courthouse and
presiding judge
Constitution
Social norms
Media system
Civic attitudes/
behaviors

3. Influence in Journal Groups
(Optional: Assess with TurningPoint survey)

4. When Minority Opinion Prevails
Group structure and task
More than one person in minority
Smaller groups
Real, significant stakes in discussion
Group process variables
Maintain a consistent position during discussion
Use a “tag team” style, alternating speaking turns
Put forward high-quality arguments and refutations

5. Arguments and Influence in EST
Nature of issue
or problem
Group size
Time available
Attitude type
and distribution
Discussion
functions and
sequencing
Valence and
content of
arguments used
Content and
quality of
decision(s)
and/or report
Argument
systems

6. Effect Sizes Correlation coefficient Basic effect sizes
Known as the Pearson “r”
Ranges from -1.0 to 1.0
When squared, it estimates “variance accounted for”
Basic effect sizes
+/- .10 “small” (1% of variance)
+/- .30 “medium” (9% of variance)
+/- .50 “large” (25% of variance)

7. Meta-Analytic Findings on Group Decisions Making
Adapted from Richard, Bond Jr., and Stokes-Zoota (2003), p. 356.