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Evidence Based Approach > Lecture Week 1 > Flashcards

Lecture Week 1 Flashcards

1
Q

Define Psychology

A

The Scientific investigation of mental processes and behaviour

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2
Q

How do we study the mind?

A
  • we need generally agreed on methods to be developed and taught
  • We developed the Scientific Method
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3
Q

What is the mind?

A
  • An abstract concept and construct but we know the conscious exists
  • ## not discernible using the senses
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4
Q

Cognitive & Information Processes Revolution

A
  • gave us more tangible constructs to work with to define the mind
  • Store, retrieve, compute, memory these concepts help us define the mind.
  • Second part of psychology becomes the mind
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5
Q

Second part of psychology becomes the mind

A
  • Investigate Mental Processes

- How does the mind produce behaviour

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6
Q

In order to study the mind we need . . .

A
  • to agree on a process of study

-

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7
Q

How do we think we know something about reality?

A
  • Existential concepts
  • It is very hard to decide how we really know things
  • Is there such a thing as Free Will
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8
Q

Tenacity

A

Acquiring Knowledge through Superstition or Habit

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9
Q

Intuition

A

Acquiting knowledge not based on reasoning or inference or common sense

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10
Q

Authority

A

Accepting knowledge from a highly respected source

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11
Q

Rationalism

A

Acquiring knowledge through reasoning

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12
Q

Epiricism

A

Acquiring knowledge through experience

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13
Q

Two ways to back up your thoughts in your writing in a paper

A
  1. Cite empirical evidence and reference

2. Rationalise through reason and logic; if, then, else.

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14
Q

Why do we need the scientific method?

A
  • Human judgement is not trustworthy
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15
Q

Heuristics

A

A heuristic is a mental shortcut that allows people to solve problems and make judgments quickly and efficiently

  • Allows us to make connections quickly
    eg: Blue Taxi vs Green Taxi example.
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16
Q

Reliance on Intuition

A
  • Removes objectivity we “feel” like we have free will.

- We learn that it is useful to rely on our instincts so we do have free will.

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17
Q

Heuristics/Biases

A
  • Mental short cuts and preconceived ideas prevent us from being objective
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18
Q

Perception vs Reality

A
  • perception is subject to the individual mind and its method of processing input
  • Is perception actually reality
  • We don’t actually SEE reality; we IMPOSE what we see as tools on the world.
    eg: we perceive a chair, we impose our knowledge of its use on it and conclude therefore the chair is real.
  • We see its use
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19
Q

Human Observation

A
  • Isn’t reliable as it is subjective to perception
20
Q

Reliance on Authority

A
  • Higher authorities are human and therefore also fallible
  • Asch Experiment shows we can be coerced into changing our own perceptions
  • Milgram Experiment shows how reliance on authority is ingrained in us but can produce incongruent behaviour
21
Q

How do psychologists know things?

A

Apply the scientific method

22
Q

What are some non science ways of knowing?

A
  • Tenacity
  • Intuition
  • Authority
  • Rationalism
  • Empiricism
23
Q

Why don’t we trust human judgement

A
  • Unreliable, malleable, perception vs reality, biases etc
24
Q

How do we hope to gain knowledge?

A
  • science requires that knowledge is based on evidence

- Assigning likelihood of one result to occur for one alternative over another

25
Q

What do we accept as evidence?

A
  • Evidence must be reproducible
  • Other people must be able to verify it.
  • Objective evidence requires objective process
26
Q

What is the goal of Science (4)

A
  • Describe
  • Predict
  • Determine Cause
  • Explain
27
Q

Goal of Science - Describe

A
  • give an accurate description of knowledge that can be observed by others
    eg: In the dark I cannot see
28
Q

Goal of Science - Predict

A
  • Gives rise to posit that something will happen as a result of something else.
  • something is true because it works through prediction.
    eg: In the dark I cannot see. If I turn on a light it will illuminate the room and I will see
29
Q

Goal of Science - Determine Cause

A
  • We investigate what could create the situation being observed.
  • When tested over and over again then we could reliably establish a cause
    eg: I turned on the light repeatedly and the light globe illuminated the room each time
30
Q

Goal of Science - Explain

A
  • Provide an adequate reason as to why something works and is therefore real.
    eg: The house has been wired with electricity and therefore every time I turn on the light it will illuminate the room.
31
Q

So what is good scientific research (7)

A
  • Based on the work of others
  • Can be replicated
  • Is generalisable to other settings
  • Based on logical rationale and tied to a theory
  • Is doable
  • Generates new questions
  • Is incremental
  • Is an apolitical activity
32
Q

Falsifying a Theory

A
  • For a statement to be true it needs to withstand rigorous testing
  • a hypothesis or statement must be inherently disprovable for it to be true.
  • Science is a series of conjectures and refutations
33
Q

What does good research have in common

A
  • the Process that is taken to find the truth
  • applying the scientific method
  • if the process is sound then the conclusion is sound
34
Q

what is the Hypothetico-Deductive Model of Research?

A
  • Devised by Karl Popper (1959)
  • No statements in science that cannot be tested through falsification.
  • Theories cannot be proven but they can be falsified.
  • Once a theory cannot be falsified then it is considered true
    eg: All swans are white. Good scientist won’t accept finding 100 white swans as sufficient evidence that all swans are white.
    They will actively seek out evidence that black or other coloured swans exist
35
Q

Can we ever really know the truth?

A
  • Scientific Method is the best way to establish the truth of our beliefs
  • a way of observing, thinking about, solving problems
  • Is objective and systematic in its approach
36
Q

The Process of the Scientific Method (8)

A
  • Asking the question
  • Identify the important factors
  • Formulate a hypothesis
  • Collect relevant information
  • Test the hypothesis
  • Work with the hypothesis
  • Reconsider the theory
  • Ask new questions
37
Q

The Scientific Process - Asking a question

A
  • The result off curiosity or need
  • Questions guide the direction research takes
  • Usually arise out of everyday experiences
38
Q

The Scientific Process - Identifying important factors (5)

A
  • Not have been investigated previously
  • Contribute to understanding
  • Available to investigate
  • Hold interest personally and/or professionally
  • Lead to other questions
39
Q

The Scientific Process - Formulate a hypothesis

A
  • a prediction or educated guess based on theory.
  • What would happen if true
  • Posit an expected relationship
  • Declarative, brief and to the point
  • reflect theory and literature
40
Q

Emotional Valence

A
  • The value we associate with something (stimulus)
  • we measure on a continuum from positive to negative
  • also measured from attractive to aversive.
41
Q

Theories, Questions and Hypotheses

A
  • Facts first
  • Then Hypothesis
  • Then collect data and test hypothesis
  • Attempt to falsify
  • the hypothesis failed to be rejected
  • Leads to theory
  • Leads to prediction
  • Although Karl Popper would say Theory comes first, then the facts
42
Q

Collecting Relevant Information

A
  • We want to test a hypothesis not prove it
  • reveal the truth whether we like the result or not
  • wrong isn’t bad, just ask more questions
  • always ask another question
43
Q

Testing a hypothesis

A
  • Do testing in various circumstances
  • try to find differences to see if they are random or not
  • Use inferential statistics to assign a probability level to a finding
44
Q

Inferential Statistics

A
  • using a random sample of data about a population to describe the population
45
Q

Working with a hypothesis

A
  • Does the data support your hypothesis?
  • Results provide valuable information even when that data doesn’t support the hypothesis
  • Will the scientific community respect “null” results
46
Q

Finally . . . asking new questions and reconsider the theory

A
  • consider the work so far and start the whole process again.
47
Q

Important points to consider in the Scientific Process

A
  • All theories are tentative and evolving
  • observations must be replicable
  • Acknowledge that science is fallible
  • Nothing is ever Proved absolutely
  • remain sceptical and alert to alternative explanations
  • science and research are a matter of attitude

Evidence Based Approach (15 decks)

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