Lesson 2 Flashcards

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1
Q

Define behaviourism.

A

Theoretical orientation that scientific psychology should study observable behaviour. Relies heavily on the belief that human and animal behaviour can be explained in terms of conditioning, without appeal to thoughts or feelings, and surround the belief that the best way to treat psychological disorders was through altering behaviour patterns. Used a lot of animal research.

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2
Q

What is the humanistic perspective?

A

Centered around the belief that humans were greater than other species, and emphasizes concepts such as free will, self-efficacy, and self-actualization. The goal is to help humans achieve their full potential. Does not have a lot of progress scientifically, and is not particuarly quantifiable. Deterministic in nature.

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3
Q

The humanistic perspective was primarily brought about by ______ and _____.

A

Carl rogers, abraham maslow.

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4
Q

Define the cognitive perspective.

A

The concept of measuring external behaviour in order to use it to make inferences about a person’s inner world and processes. Most psychologists brand themselves as cognitive psychologists. It was mainly derived from a new interest in behaviourism in the late 60s and 70s.

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5
Q

What is the biological perspective of psychology?

A

An emphasis on how physical/biological processes influence behaviour. Has been a part of psychology since the beginning.

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6
Q

Explain present day sociocultural psychology.

A

The idea that society/culture/environmental factors influence behaviour. Not rigourously studied in the past. Stresses the relationship and interaction between developing people and the culture that surrounds them.

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7
Q

What is the focus of developmental psychology?

A

Child development and emotional processes, as well as how individuals grow and change throughout the course of their lifetime.

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8
Q

What is applied psychology? How did it come about?

A

The concept of laboratory to real world science. Primarily drawn from recruitment of soldiers in world war III, with tests to determine mental capacity and therefore clinic diagnoses (clinical psychology)

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9
Q

Psychometrics is…

A

…the science of measuring mental capacities and processes, mainly through psychological tests. Currently attempting to develop more robust tests.

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10
Q

What is naive realism?

A

The belief that we see the world exactly as it is. However, it is a useful starting point for science.

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11
Q

What is the fundamental problem with common sense?

A

It is actually impossible to believe two contradictory things at the same time.

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12
Q

Describe the works of Ignaz semmelweis.

A

He worked at a hunagarian hospital with two separate maternity wards, one with a much higher mortallity rate. The only difference was one was run by doctors who would do autopsies in the early morning, and the other group who did not. Discovered that the doctors carried tiny particles transmitte dto the women giving birth, and that hand washing resulted in a noticeably lower mortality rate.

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13
Q

List the steps involved in the scientific method.

A
  1. Identify the question of interest
  2. Gather relevant information and formulate a testable hypothesis
  3. Analyze the data and draw tentative conclusions
  4. Report the findings and ask further questions
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14
Q

What is falsifiability?

A

A hypothesis is falsifiable if it is capable of being disproved.

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15
Q

Describe the concept behind science and induction.

A

A deductive argument/statement where it is assumed that if the premises are true, the argument’s conclusion must be as well. An inductive argument/statement claims that it is improbable that the conclusion is false because the premise is true.

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16
Q

True or false: you can never prove a positive claim in science, only have theories.

A

True

  • science can falsify conclusions
  • looking for evidence is solely looking for something that disproves a scientific claim
  • no way to deductively test psychoanalytic statements
  • this kind of pseudoscience can be damaging
  • some things can be so vague that they can apply to any person or circumstance, and are therefore unfalsifiable
  • inductive reasoning - everything is probabilistic
17
Q

Define “theory”

A

A well substantiated explanation through the scientific method.

18
Q

Define the dependant/independant variable in science

A

Dependant variable - the caused effect

independent variable - the variable expected to affect the dependent variable

19
Q

Define operational in terms of variables. What should it be?

A

A description of a variable in terms of the operations used to establish or measure that variable. Should be:

  • precise
  • practical
  • quantitative
  • have good interobserver reliability
20
Q

What is the purpose of a density plot?

A

Helps to visualize variables (anything that can take on different values)

21
Q

normal/gaussian distribution can be described by just the ____ and the _____ ______.

A

Mean, standard deviation.

22
Q

What is the probability distribution?

A

A math equation describing probability.

23
Q

What are the three main measure of central tendency? What do they represent?

A

the mode: greatest frequency (happens the most)

median: middle number in an ordered set of data
mean: number (average), x+y/2, etc.

24
Q

List the advantages and disadvantages of using the mode in data

A
  • works well with normal frequency data
  • can produce sensible values (in contrast to mean or median)
  • dependent on how you group/bin your data
  • lower sampling stability (fluctuations from sample to sample)
  • may not exist for some data
25
Q

List the advantages/disadvantages of using the median in data

A
  • robust to extreme values

- doesn’t work with common statistical methods

26
Q

List the advantages/disadvantages of using the mean in data

A
  • best sampling stability
  • works with many statistical methods
  • value may not exist in real world
  • assumes data is on a interval measurement scale
  • not robust to extreme values
  • rarely ever representative
27
Q

What equation do you use to represent the spread/variability/deviations from the mean?

A

σ = Σ|x − μ|/N