Research Methods Flashcards

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1
Q

What is coding?

A

The process of placing quantitative or qualitative data in categories

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2
Q

What is content analysis?

A

A kind of observational study in which behaviour is usually observed indirectly in visual written or verbal material.

May involve either qualitative or quantitative analysis or both.

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3
Q

What is thematic analysis?

A

A technique used when analysing qualitative data.

Themes or categories are identified and then data is organised according to these themes.

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4
Q

In what ways does a researcher of content analysis make design decisions?

A
  • Sampling method
  • Coding the data
  • Method of representing data.
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5
Q

What are the strengths of content analysis?

A
  • High ecological validity - observations of what people actually do
  • reliable - sources retained and accessed by others.
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6
Q

What are the limitations of content analysis?

A
  • observer bias reduces objectivity and validity of findings
  • culturally bias - affected by language and culture of observer and behaviour categories used.
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7
Q

What are the main intentions of thematic analysis?

A
  • impose order on data
  • endure ‘order represents participants perspective
  • ensure order emerges from data rather than preconceptions
  • summarise data so hundreds of pages of text or hours of videotapes can be reduced
  • enables themes to be identified and general conclusions drawn
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8
Q

what is the general method of thematic analysis?

A
  1. Read and reread transcript dispassionately to understand the meaning. No notes made.
  2. Break into meaningful units
  3. assign labels to each unit
  4. combine simple codes into larger categories/themes and then instances can be counted or examples provided
  5. check made to emergent categories by collecting a new set of data and applying categories.
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9
Q

Define - Case study

A

A research method that involves a detailed study of a single individual institution or event.

Providing a rick record of human experience but are hard to generalise from.

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10
Q

Why are case studies normally longitudinal?

A

They follow the individual or group over an extended period of time.

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11
Q

What are the strengths of using case studies?

A
  • Offers rich, in-depth data information.
  • Used to investigate instances of human behaviour and experiences that are rare. - it would not be ethical to generate such conditions experimentally.
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12
Q

What are the limitations of using case studies?

A
  • Difficult to generalise from individual cases - HM
  • Ethical issues such as conformity and informed consent - HM and little Hans
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13
Q

What is inter-observer reliability?

A

The extent to which there is an agreement between two or more observers involved in observations of behaviour.

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14
Q

What is the reliability?

A

Consistency

We would expect any measurement to produce the same data if taken on successive occasions

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15
Q

What is test-retest reliability?

A

The same test or interview is given to the same participants on two occasions to see if the same results are obtained.

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16
Q

How can you improve reliability using behavioural categories?

A

Behavioural categories

  • BCs are not operationalised clearly enough
  • Some observers just need more practice using BCs so they can respond more quickly.
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17
Q

What are the two ways to assess reliability?

A
  • Test-retest reliability
  • Inter-interview reliability
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18
Q

How can you improve reliability using reduced ambiguity?

A
  • People give different answers - tests should be re-examined and rewritten
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19
Q

How can you improve reliability using standardisation?

A
  • Procedures should be exactly the same every time they are repeated.
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20
Q

what is concurrent validity?

A

A means of establishing validity by comparing an existing test or questionnaire with the one you are interested in

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21
Q

What is ecological validity?

A

The ability to generalise a research effect beyond the particular setting in which it is demonstrated to other settings.

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22
Q

What is face validity?

A

The extent to which test items look like what the test claims to measure

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23
Q

What is mundane realism?

A

Refers to how a study mirrors the real world.

The research environment is realistic to the degree to which experiences encountered in the research environment will occur in the real world.

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24
Q

What is temporal validity?

A

Concerning the ability to generalise a research effect beyond the particular time period of the study.

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25
Q

What is validity?

A

Refers to whether an observed effect is a genuine one.

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26
Q

What are examples of internal validity?

A
  • Investigator effects
  • demand characteristics
  • confounding variables
  • social desirability bias
  • poorly operationalised behavioural categories
27
Q

What are the sections of external validity?

A
  • population validity
  • temporal validity
  • ecological validity
28
Q

What are the two methods of assessing validity?

A
  • face validity
  • concurrent validity
29
Q

How can you improve validity?

A
  • If poor face validity - questions revised so more obviously related to the topic
  • if low concurrent validity - remove questions that are irrelevant
  • A Better design used if lack internal or external validity.
30
Q

Define - empirical

A

A method of gaining knowledge which relies on direct observation or testing, not hearsay or rational argument.

31
Q

Define - falsifiability

A

The possibility that a statement or hypothesis can be proved wrong.

32
Q

Define - Paradigm

A

A shared set of assumptions about the subject matter of discipline and the methods appropriate to its study

Kuhn 1962

33
Q

What are the five key features of science?

A
  1. Empirical methods
  2. Objectivity
  3. Replicability
  4. Theory construction
  5. Hypothesis testing
34
Q

What did Karl Popper argue?

A

It was not possible to confirm a theory - it was only possible to disconfirm it

Led to the null hypothesis - disproving this will prove other hypotheses - the alternative hypothesis

35
Q

What did Thomas Kuhn publish in 1962?

A

The structure of scientific revolutions

Proposed that scientific knowledge about the world develops through revolutions rather than Poppers theory of falsification

The idea of a paradigm shift

36
Q

Define - Alternative hypothesis

A

A testable statement about the relationship between two or more variables

37
Q

Define - Null hypothesis

A

An assumption that there is no relationship in the population from which a sample is taken with respect to the variables being studied

38
Q

Define - probability

A

A numerical measure of the likelihood or chance that certain events will occur.

A statistical test gives the probability that a particular set of data did not occur by chance.

39
Q

What is a type 1 error?

A

Occurs when a researcher rejects a null hypothesis that is true

false negative

40
Q

What is a type 2 error?

A

Occurs when a researcher accepts a null hypothesis that is not true.

false positive

41
Q

Why do we use statistical tests?

A

Work out how probable it is that a pattern in research data could have arisen by chance or how probable it is that the effect occurred because there is a real difference/correlation in the populations from which the samples are drawn

42
Q

What is chance?

A

Something with no cause - it just happens

43
Q

What is the average level of probability?

A

95%

This is the degree of uncertainty.

5% chance the null hypothesis is true. p=0.05

44
Q

What does p = ?

A

0.05 = signifcance level

5% chance null hypothesis is correct.

45
Q

Define - calculated value

A

The value of a test statistic calculated for a particular data set

46
Q

define - critical value

A

In a statistical test the value of the test statistic that must be reached to show significance

47
Q

define - degrees of freedom

A

the number of values that are free to vary given that the overall total values are known

48
Q

Define - levels of measurement

A

Refers to the different ways of measuring items of psychological variables the lower levels are less precise.

49
Q

Define - one-tailed test

A

form of test used with a directional hypothesis

50
Q

Define - significance

A

A statistical term indicating that the research findings are sufficiently strong to enable a researcher to reject the null hypothesis under test and accept the research hypothesis.

51
Q

Define - statistical test

A

procedures for drawing logical conclusions about the population from which samples are drawn

52
Q

Define - test statistic

A

the name was given to the value calculated using a statistical test.

For each test, this value has a specific name such as S for the sign test.

53
Q

Define - two-tailed test

A

Form of test used with a non-directional hypothesis

54
Q

Why do psychologists prefer parametric tests over non-parametric?

A

They are more powerful.

They can however only be used if certain criteria are met.

55
Q

What criteria must be met in order to use a parametric test?

A
  • the level of measurement is interval or better
  • data are drawn from a population that has a normal distribution
  • the variances of the two samples are not significantly different
56
Q

What values do you need to use a statistical table?

A
  1. signifance level - usually p <- 0.05
  2. kind of hypothesis - one or two-tailed
  3. Value of N - participants in study
57
Q

What are the two non-parametric tests for difference?

A
  • Wilcoxon test for related designs
  • Mann-whitney test for unrelated designs.
58
Q

What are the two parametric tests of difference?

A
  1. Related T-test
  2. unrelated T-test
59
Q

What are the two tests of correlation?

A
  1. A non-parametric test - Spearman’s rho
  2. A parametric test - Pearson’s R
60
Q

What sections are journal articles separated into?

A
  1. abstract
  2. introduction
  3. method
  4. results
  5. discussion
  6. references
61
Q

What is an abstract?

A

Summary of the study covering aims, hypothesis, method, results and conclusions.

usually 150-200 words

62
Q

What does the method section in a journal contain?

A
  • design
  • participants
  • apparatus/materials
  • procedures
  • ethics
63
Q

What is in the discussion section of a journal?

A
  • summary of results
  • relationship to previous research
  • consideration of methodology
  • implications for psychological theory and possible real-world applications
  • suggestions for future research
64
Q

What is the format for a journal article?

A

Authors name(s), date, the title of article, journal title, volume (issue number), page numbers