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Significance of
Research and the
Independent and
Dependent Variables
Research
• Research is actually an act of studying
something carefully and extensively in order
to attain deep knowledge in the same.
• It can, as well, cater to people and scholars
from artistic, historic or any other field
where an individual is willing to do extensive
study to get relevant information. Research
can be creative, exploring or just reassuring
in nature.
Significance of
Research
To Gather Necessary Information
Research provides you with all necessary
information in field of your work, study or
operation before you begin working on it.
Research also helps them get acquainted
with the processes and resources
involved and reception from the
market. This information helps in
the successful outcome of the
project.
To Make Changes
Sometimes, there are in-built problems in a
process or a project that is hard to discover.
Research helps us find the root cause and
associated elements of a process.
The end result of such a research
invokes a demand for change and
sometimes is successful in producing changes
as well. Only through research can new
inventions and discoveries come into life.
For A Safer Life
Research has made ground breaking
discoveries and development in the field of
health, nutrition, food technology and
medicine. These things have improved the life
expectancy and health conditions of human race in
all parts of the world and helped eradicate diseases
like polio, smallpox completely. Diseases that were
untreatable are now history, as new and new
inventions and research in the field of medicine have
led to the advent of drugs that not only treat the
once-incurable diseases, but also prevent them from
recurring.
To Know The Truth
It has been proved time and again
that many of established facts and
known truths are just cover ups or
blatant lies or rumors. Research is
needed to investigate and
expose these and bring out
the truth.
Explore Our History
Research about our planets history and human
history has enabled us to learn and understand
more about our forefathers and helped us learn
from their mistakes and absorb good things from
their life. Research about the planet’s history and
existence has told us a lot about how things will
shape up in years to come and how we
need to respect our planet and work
closely together to stop global warming
and other scenarios of destruction.
Understanding Arts
This helps us in understanding the work of
artists in literature, paintings, sculptures and
everything that can be attributed with artistic
touch. If no research is conducted into any of
these, we will never be able to understand any
of these as per the artist’s imagination. Also, a
lot of great artistic work is hidden in
the shadows of history, which needs
to be drawn out.
Independent &
Dependent Variables
Nothing you do
affects me, I’m
independent. Some things
you do affect
me.
The IV-DV
Game!!!
(Independent and Dependent
Variable)
$10
$1
$100
$10000
$1000
$100000
The IV-DV Game!!!
(Independent and Dependent Variable)
A researcher is studying the effect of
sleep on aggression, thinking that less
sleep will lead to more aggression. She
has some people sleep 6 hours per
night, some people sleep 3 hours per
night and some people sleep as much as
they want.
IV DV
Q: Which among the following is the
Independent Variable?
A researcher is
studying
effects of
sleep
aggression Insomnia
Q: Which among the following is the
Dependent Variable?
A researcher is
studying
effects of
sleep
aggression Insomnia
Awesome!!!
Nice try….
IV DV
Correct answer:
IV
effects of
sleep
Correct answer:
DV aggression
A researcher is curious to find out what
effect classical music has on people’s
level of relaxation (as measured by
heart rate).He lets one group listen to
classical music for one hour. He lets
another group sit in a quiet room for
one hour (i.e they hear no music).
IV DV
Q: Which among the following is the
Independent Variable?
Level of
relaxation
Curiosity
quiet room
Effects of
classical music
Q: Which among the following is the
Dependent Variable?
Level of
relaxation
Curiosity
quiet room
Effects of
classical music
Awesome!!!
Nice try….
IV DV
Correct answer:
IV
Effects of
classical music
Correct answer:
DV
Level of
relaxation
A researcher conducts an experiment
to assess the effects of alcohol on
people's sense of balance. He then
watches as each participant tries to
walk on a straight line from one
corner of the room to the next and
notes how many times they stumble
outside the line.
IV DV
Q: Which among the following is the
Independent Variable?
Sense of
balance
Walking in a
straight line
Stumbling
outside the line
Effects of
alcohol
Q: Which among the following is the
Dependent Variable?
Sense of
balance
Walking in a
straight line
Stumbling
outside the line
Effects of
alcohol
Awesome!!!
Nice try….
IV DV
Correct answer:
IV
Effects of
alcohol
Correct answer:
DV
Sense of
balance
So what now are the so
called Independent and
Dependent Variables?
I. INDEPENDENT VARIABLES(IV)
•input variable
•the presumed cause
•the antecedent
•controlled and manipulated
by the experimenter
II. Dependent Variable (DV)
• outcome variable
• the consequent.
• not manipulated, instead observed
or measured for variation as a
presumed result of IV.
• dependent on independent variable
REMEMBER!!!
•The dependent variable is
always what is being
measured, while the
independent variable is the
one that the researcher
manipulates.
Thank You!!! 

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Independent and Dependent Variables

  • 1. Significance of Research and the Independent and Dependent Variables
  • 2. Research • Research is actually an act of studying something carefully and extensively in order to attain deep knowledge in the same. • It can, as well, cater to people and scholars from artistic, historic or any other field where an individual is willing to do extensive study to get relevant information. Research can be creative, exploring or just reassuring in nature.
  • 4. To Gather Necessary Information Research provides you with all necessary information in field of your work, study or operation before you begin working on it. Research also helps them get acquainted with the processes and resources involved and reception from the market. This information helps in the successful outcome of the project.
  • 5. To Make Changes Sometimes, there are in-built problems in a process or a project that is hard to discover. Research helps us find the root cause and associated elements of a process. The end result of such a research invokes a demand for change and sometimes is successful in producing changes as well. Only through research can new inventions and discoveries come into life.
  • 6. For A Safer Life Research has made ground breaking discoveries and development in the field of health, nutrition, food technology and medicine. These things have improved the life expectancy and health conditions of human race in all parts of the world and helped eradicate diseases like polio, smallpox completely. Diseases that were untreatable are now history, as new and new inventions and research in the field of medicine have led to the advent of drugs that not only treat the once-incurable diseases, but also prevent them from recurring.
  • 7. To Know The Truth It has been proved time and again that many of established facts and known truths are just cover ups or blatant lies or rumors. Research is needed to investigate and expose these and bring out the truth.
  • 8. Explore Our History Research about our planets history and human history has enabled us to learn and understand more about our forefathers and helped us learn from their mistakes and absorb good things from their life. Research about the planet’s history and existence has told us a lot about how things will shape up in years to come and how we need to respect our planet and work closely together to stop global warming and other scenarios of destruction.
  • 9. Understanding Arts This helps us in understanding the work of artists in literature, paintings, sculptures and everything that can be attributed with artistic touch. If no research is conducted into any of these, we will never be able to understand any of these as per the artist’s imagination. Also, a lot of great artistic work is hidden in the shadows of history, which needs to be drawn out.
  • 11. Nothing you do affects me, I’m independent. Some things you do affect me.
  • 12. The IV-DV Game!!! (Independent and Dependent Variable)
  • 14. A researcher is studying the effect of sleep on aggression, thinking that less sleep will lead to more aggression. She has some people sleep 6 hours per night, some people sleep 3 hours per night and some people sleep as much as they want. IV DV
  • 15. Q: Which among the following is the Independent Variable? A researcher is studying effects of sleep aggression Insomnia
  • 16. Q: Which among the following is the Dependent Variable? A researcher is studying effects of sleep aggression Insomnia
  • 21. A researcher is curious to find out what effect classical music has on people’s level of relaxation (as measured by heart rate).He lets one group listen to classical music for one hour. He lets another group sit in a quiet room for one hour (i.e they hear no music). IV DV
  • 22. Q: Which among the following is the Independent Variable? Level of relaxation Curiosity quiet room Effects of classical music
  • 23. Q: Which among the following is the Dependent Variable? Level of relaxation Curiosity quiet room Effects of classical music
  • 28. A researcher conducts an experiment to assess the effects of alcohol on people's sense of balance. He then watches as each participant tries to walk on a straight line from one corner of the room to the next and notes how many times they stumble outside the line. IV DV
  • 29. Q: Which among the following is the Independent Variable? Sense of balance Walking in a straight line Stumbling outside the line Effects of alcohol
  • 30. Q: Which among the following is the Dependent Variable? Sense of balance Walking in a straight line Stumbling outside the line Effects of alcohol
  • 35. So what now are the so called Independent and Dependent Variables?
  • 36. I. INDEPENDENT VARIABLES(IV) •input variable •the presumed cause •the antecedent •controlled and manipulated by the experimenter
  • 37. II. Dependent Variable (DV) • outcome variable • the consequent. • not manipulated, instead observed or measured for variation as a presumed result of IV. • dependent on independent variable
  • 38. REMEMBER!!! •The dependent variable is always what is being measured, while the independent variable is the one that the researcher manipulates.