Reliability Flashcards

1
Q

If we take multiple measurements, will they be consistent?
This is known as?

A

Reliability

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2
Q

You measure once and you measure again at a later point in time is called?

A

test-retest reliability

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3
Q

test-retest reliability can be seen on which plot?

A

Bland-Altman plot

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4
Q

Internal consistency: different forms of questions

2 versions of the form can pass test re-test reliability

If we have a larger set of questions and administer them (only use half) to each group, then you measure how correlated the are.
This is known as which correlation?

A

Split-half correlation

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4
Q

look at stuff that’s administered at the same time is known as testing?

A

Testing Internal consistency

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5
Q

What requires experimenter or observer to evaluate and give ratings to an object or phenomenon?

A

interrater reliability

-you give instructions on how to rate the thing
-sentences are coded to see how much they relate to the research question
-then see how correlated they are
-the different people coding it should be consistent

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6
Q

Test-retest reliability (consistent across times) use what to measure consistancy?

A

Test-retest correlation, Bland-Altman plot

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7
Q

Internal consistency (consistent across items) uses what to measure consistancy?

A

Split-half correlation, Cronbach’s α (alpha)

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8
Q

Interrater reliability (consistent across researchers) uses what to measure consistancy?

A

Intraclass correlation, Cohen’s κ (kappa)

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9
Q

An important feature of experiments is the causal relationship between variables is known as?

A

An experiment

If an independent variable is manipulated, how are those changes reflected in a dependent variable?
CAUSAL (A→B) relationships

Experiment only if something is manipulated
(otherwise can still be a study, but may not be an experiment)

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9
Q

How well does a measure relate all facets of a given construct is known as?

A

content validity
-eg. both positive and negative symptoms of schizophrenia

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9
Q

How well does a measure relate to the theoretical concept you are studying is known as?

A

construct validity
- we want to asses this

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10
Q

What are the 3 broad components of construct validity?

A

1- describing theoretical concepts and relationships

2- developing measures of constructs proposed based on theory

3- empirically test the relationships

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11
Q

How well does a measure account for the manipulated change is known as?

E.g., strength of causal relationship, potential influence of confounding factors

A

internal validity

-can be affected by confounding variables which is a threat/ anything that can create a confound

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11
Q

How well do findings relate to conceptually similar circumstances and the generalisation of findings is known as?

A

external validity
-High external validity (such as a field experiment) may lead to less control for confounds

Think about would the results generalise to the population (making inferences)

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11
Q

Name examples of factors that can lead to a decrease in internal validity (threats):

A

Participant selection

Participant motivation (fatigue, time of day)

Maturation (development, aging)

Experimenter training

Equipment decay/use

Lack of random assignment

12
Q

Name 3 types of Population validity:

A

Population validity
Experimental sample to defined population
Many studies are based on undergraduate students which does not generalise to everyone

Ecological validity
Experimental setting to real world/other settings

Multiple-treatment interference
Sequence/carry-over effects

13
Q

Population validity is based on WEIRD, what does this stand for?

A

Western
Educated
Industrialized
Rich
Democratic

13
Q

Population validity is also based on STRANGE for animal studies, what does this stand for?

A

Considering population representability also applies to animal species

Social background
Trappability and self-selection
Rearing history
Acclimation and habituation
Natural changes in responsiveness
Genetic make-up
Experience

14
Q

How well do psychology findings generalise to the real world is known as which type of external validity?

E.g., older adults remember less words in a memory study than young adults, but how closely does this correspond to memory use in daily life?

A

ecological validity