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Psychology
Research methods
Aims and Hypotheses
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Aneeq ALI
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Cards (24)
What are the main topics covered in the video?
Research aims
and
hypotheses
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What is the difference between research aims and hypotheses?
Aims outline what to
investigate
; hypotheses state
testable
predictions
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What is an example of a research aim?
To find out if
colour
can influence
recall
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Why might a researcher choose to investigate a specific aim?
Previous
research raised interesting questions
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How can an aim be phrased?
As a
question
or a
statement
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What is a hypothesis?
A precise statement that can be
tested
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What must a hypothesis include in an experiment?
Levels of
independent variables
and dependent variable
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How would you operationalize the variable of recall?
By stating the
number
of words recalled
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What is the null hypothesis?
It states no
difference
between conditions
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When do scientists accept the null hypothesis?
Unless evidence is strong enough to
reject
it
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What is the alternate hypothesis also known as?
Research hypothesis
or
H1
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What does the alternate hypothesis suggest?
There is a
difference
between conditions
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What are the two ways the alternate hypothesis can be written?
Directional and
non-directional
hypotheses
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What does a non-directional hypothesis state?
There
is a
difference
but
not
the
direction
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What does a directional hypothesis indicate?
It states the direction of the
difference
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When would a researcher use a directional hypothesis?
If
previous research
indicates the direction
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Why should the word "prove" be avoided in scientific writing?
Science is
open
to new evidence and
falsifiability
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What probability threshold is accepted for the alternate hypothesis in psychology?
One in 20
or less
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What does accepting the alternate hypothesis imply?
The
evidence
is strong but not perfect
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What should you say instead of "prove" in essays?
Evidence supports the
theory
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What are the types of hypotheses in research?
Null hypothesis
(H0): No difference between conditions
Alternate hypothesis
(H1): Suggests a difference exists
Directional hypothesis
: Indicates the direction of the difference
Non-directional hypothesis
: States there is a difference without direction
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What is the process of hypothesis testing in research?
Formulate
null and alternate hypotheses
Collect data
Use
statistical tests
Evaluate evidence
Reject or accept hypotheses based on evidence
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What are the implications of using the word "proof" in scientific contexts?
Implies
absolute certainty
Contradicts the
principle of falsifiability
Misrepresents the nature of scientific inquiry
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What resources are available for students on psycboost.com?
Over
170
videos
for
qualifications
Bonus resources for
Patreon
supporters
Tutorial videos and Discord channel access
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