This document discusses the diffusion of innovations as conceptualized by Everett Rogers. It summarizes Rogers' work, which built upon earlier studies of how new ideas and technologies spread, such as a 1943 study of hybrid corn adoption among Iowa farmers. Rogers identified key elements of diffusion, including the innovation itself, communication channels, time and the social system. He described how an individual passes through stages - from first awareness to adoption or rejection. Rogers also categorized different types of adopters and the role of change agents in diffusion. The study of diffusion has provided insights across many fields involving the spread of new ideas, practices and technologies.
2. INNOVATION?
DIFFUSION?
Innovation is any new idea, new behavior,
new product, new message i.e., a new thing
that one brings to you for your adoption.
Diffusion is defined as the process by
which that innovation is communicated
through certain channels over time among
the members of a social system (Rogers,
1983) 2
3. BACKGROUND OF THE STUDY
Industrial revolution and innovations
Social and cultural changes
Mass society
3
4. CONCEPTUALIZATION BY VARIOUS
SCHOLARS
Gabrial Tarde(1890): why people adopt 10 innovations out
of 100.(laws of imitation)
Pearl-Reed logistics(1920s)
Gompertz
F. Staurt Chapen
H. Earl Pemberton(1930s)
Abraham De Movie
Ryan and Gross
4
5. IOWA STUDY OF HYBRID SEED
CORN
Development of hybrid seed
corn(1920s)
Depression of years of 1930s
Great success of hybrid seed in
Iowa(75% farmers adopted it).
Study by Bryce Ryan and Neal
Gross(published in 1943)
5
6. PURPOSE OF THE STUDY
Why Had farmers altered their
traditional practices?
What information did the
received, through what channels
and how did it influence their
decision making?
6
7. QUESTIONS EXPLORED IN THE
STUDY
What background factors influence
the decision of farmers?
How did this innovation come to
their attention?
How long did it take between
awareness and action?
What was the pattern by which the
innovation spread over time?
7
9. FINDINGS
Most tried the seed at smaller plot
Nearly half cited from salesmen
10% learned from radio advertisements
10.7% informed by articles in farm journals
14.6 named their neighbors
Few learned from the universitys extension
service
Another small number received information
from relatives
9
11. EVERETT ROGERS AND DIFFUSION
OF INNOVATION
Reviewed 506 studies of the process in 1962
Focused on pattern to process
Defined innovation in straight forward way
Clarified the work of Ryan and Gross
Identified stages in the adoption process
Types of adopters
Process of diffusion
11
12. ELEMENTS OF DIFFUSION OF AN
INNOVATION
There are 4 key elements in the diffusion
process:
1. Innovation: Any idea, object, or practice
that is perceived as new by members of
the social system
2. Channels of Communication: Means by
which information is transmitted to or
within the social system 12
13. CONTINUE
3. Time: rate at which innovation is
diffused or the relative speed with which
it is adopted by members of the social
system
4. Social System: Individuals,
organizations, or agencies that share a
common culture and are potential
adopters of the innovation
13
14. ATTRIBUTES OF INNOVATIONS
The characteristics of innovations, as perceived by
individuals, help to explain their different rates of adoption
1. Relative Advantage: Degree to which an innovation is
perceived as better than the idea it supersedes.
2. Compatibility: Degree to which an innovation is
perceived as being consistent with the existing values,
past experiences, and needs of potential adopters.
14
15. CONTINUE
3.Complexity: Degree to which an innovation
is perceived as difficult to understand and use.
4.Trialability: Degree to which an innovation
may be experimented with on a limited basis.
5.Observability: Degree to which the results
of an innovation are visible to others.
15
16. CONTINUE
Innovations that are perceived by
individuals as having greater relative
advantage, compatibility, trialability,
observability, and has less
complexity will be adopted more
rapidly than other innovations.
16
17. THE INNOVATION-
DECISION PROCESS
5 step process through which an
individual (or other decision-making
unit) passes from first knowledge of an
innovation:
(i) knowledge, (ii) persuasion, (iii)
decision, (iv) implementation, and (v)
confirmation.
17
19. Knowledge: When the individual is exposed to the
innovation's existence and gains an understanding of how it
functions
Persuasion: When the individual forms a favorable or
unfavorable attitude toward the innovation
Decision: When the individual engages in activities that
leads to a choice to adopt or reject the innovation
Implementation: When the individual puts an innovation into
use
Confirmation: When the individual seeks reinforcement for
an innovation- decision already made but may reverse the
decision if exposed to conflicting messages about it
19
20. TYPES OF ADOPTERS
(i) innovators
(ii) early adopters
(iii) early majority
(iv) late majority
(v) laggards
20
21. CHANGE AGENTS
The sequence of Change AgentRoles
1. To develop a need for change on the part of clients
2. To establish an information exchange relationship
3. To diagnose problems
4. To create an intent to change in the client
5. To translate intentions into action
6. To stabilize adoption and prevent discontinuance
7. To achieve a terminal relationship with clients
21
22. IMPORTANCE OF THE STUDY
Provided the foundation and conceptual framework
for understanding the link between awareness,
innovation , media and adoption.
Set the stage for flood of research .
Rogers estimated that by September 1993, more then
5,000 studies of the diffusion of innovation had been
published.
22
23. CONTINUE.
These studies have been widely pursued in
such fields national development, public
health, geography, marketing, adoption of
media technologies, changes in
manufacturing processes, educational
innovations, new government policies,
and dozens of others.
23
24. DIFFUSION OF NEWS
News diffusion is a branch of mass communications research dealing with how news
is circulated among publics.
Two phases of research have occurred in news diffusion research. The first phase
began after World War II and continued to the 1980s, and the second began with the
arrival of the Internet and social media in the 1990s.
Key questions raised during the first phase of diffusion research included whether
media or interpersonal ties are the sources of information about an event; the type of
event; and media structure.
In the second phase, citizen journalists and others became participants in the news
production and diffusion processwhich until the advent of new media had been
entirely controlled by professional journalists.
24