correlation studies Flashcards

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1
Q

positive correlation

A

a relationship between two variables that move in the same direction, when one variable increases as the other increases
has a plus sign as part of its correlation coefficient

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2
Q

negative correlation

A

when one variable increases the other decreases
has a minus sigh as part of its correlation coefficient

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3
Q

no correlation

A

there is no relationship between the two variables

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4
Q

operationalising variables

A

when it has been turned into something that can be measured

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5
Q

alternative hypothesis
(for correlation)

A

a prediction that there will be a statistically significant relationship between two co-variables

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6
Q

null hypothesis
(for correlation)

A

propose that there will be no statistical significance.
states there will be no correlation between x and y

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7
Q

two-tailed hypothesis
(for correlations)

A

there will be no correlation between x and y

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8
Q

one tailed hypothesis
(for correlations)

A

results from an alternative hypothesis which specifies a direction

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9
Q

co-variable

A

indicate two or more quantities being measured in a correlation by the researcher that may or may not vary with each other

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10
Q

correlation co-efficient

A

numerical measure of some type of correlation eg -1 , 1

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11
Q

scattergraph

A

type of plot or mathematical diagram using coordinates to display values for typically two variables for a set of data

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12
Q

primary data

A

data gathered directly from the participants by the researcher

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13
Q

secondary data

A

data that has already been gathered by someone other than the researcher

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14
Q

sampling method

A

the researcher will need to decide what the target population is that they want to be able to make generalisations about and then settle on a way or obtaining a sample of either participants or data that will be representative of this

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15
Q

unstructured observation

A

When observation is to take place without the pre defined plan and characteristics in advance,

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16
Q

structured

A

observations take place with a predefined plan and characteristics in advance

17
Q

behavioural categories

A

Clearly defined, specific actions that can be observed and recorded as examples of the target behaviour.

18
Q

coding frame

A

an organized and systematic approach to categorizing and interpreting the collected data

19
Q

naturalistic observation

A

a qualitative research method where you record the behaviors of your research subjects in real world settings.

20
Q

controlled observation

A

a research method where researchers watch participants in a contained environment, such as a laboratory.

21
Q

participant observation

A

a research methodology where the researcher is immersed in the day-to-day activities of the participants.

22
Q

non- participant observation

A

observing participants without actively participating.

23
Q

covert observation

A

where the researcher is “undercover”; the participants are unaware that they are being observed.

24
Q

overt observation

A

where those being observed are aware of the fact.

25
Q

event sampling

A

involves observation of targeted behaviours or specific events.

26
Q

time sampling

A

method of collecting data or information in which you watch research participants for a specific amount of time and record whether or not a particular behavior or activity took place.

27
Q

researcher/ observer bias

A
28
Q

researcher/ observer effect

A
29
Q

inter- rater reliability

A

the extent to which different raters or observers give consistent estimates of the same phenomenon