Quantitative Flashcards

1
Q

Quan

A

a deductive approach
theory testing
quan starts with a theory and test hypothesis

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2
Q

Hypothesis

A

an expected answer to our research question

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3
Q

Theory =

A

a reasoned and precise speculation about the answer to a research question

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4
Q

reliability

A

the consistency of a measure of a concept

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5
Q

concepts

A

labels of ideas or phenomena

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6
Q

Descriptive inferences

A

set of observations in order to understand a phenomena

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7
Q

Validity

A

data quality- refers to the truthfulness of a measure -

measuring what we think it is measuring

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8
Q

Reliable

A

data collection is reliable - could apply the same procedure at a different time and will get the same results

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9
Q

Casual relationship

A

Causality is the relation between an event and a second event, where the second event is understood as a consequence of the first

However finding a relationship doesn’t mean its casual

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10
Q

Methodology

A
  • a system of methods used to test hypothesis

- steps to test a hypothesis

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11
Q

Measurement

A

process by which raw data is turned into numbers

imposing a numerical structure on our data

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12
Q

Coding

A

process which observations recorded in the course of social research - then transformed from raw data into categories and classifications which then become subject to quan data analysis

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13
Q

coding involves the act of measurement

A

trying to measure the underlying social variable

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14
Q

variables

A

measures of indicators
variables are how we operationalise social concepts
variable is a characteristic that is likely to vary

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15
Q

Not all variables are equal - need different levels

A

Nominal
Ordinal
Interval

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16
Q

Nominal level variables

A

are categorical

response categories cannot be placed in a specific order - can’t judge distance between

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17
Q

Nominal and Ordinal

A

both categorical

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18
Q

Examples of Nominal level variables

A

Sex

Ethnicity

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19
Q

Examples of Ordinal

A

Likert scale - agree, strongly agree

20
Q

Examples of Interval (continuous)

A

age

temperature

21
Q

Ordinal level variables -

A

can be placed in rank orders, one is greater than the other.
But do not have mathematically distance between

22
Q

Interval (scale) level variables (continuous) =

A

rank order, with uniformed distance between each response which allows for mathematically measurement

23
Q

Interval level variable is..

A

Continuous

24
Q

Missing data =

25
Each row in SPSS =
a case
26
Each column in SPSS =
represents a variable
27
Each cell in SPSS =
contains a response
28
Visualising Nominal data -
Pie charts | interested in proportion of people
29
Visualising Ordinal data-
Bar chart | compare proportion of people agreeing or disagreeing
30
Visualising Interval (scale) data-
Histograms - normal distribution
31
Histograms show is variables are..
Normall distributed
32
Visualising relationship between 2 Interval (scale) variables =
Scatterplot
33
Inference
using facts we know the data to learn about the facts we do not know
34
Descriptive statistics
is the main tool to make descriptive inferences allow us to describe our data describe basic features of the sample we are interested in - NOT looking for relationship - patterns and trends!
35
Characteristics of a variable - 3
distribution/frequency central tendency dispersion
36
Characteristics of a variable shown in - | Frequency table
displays number of times that a value appears within the data set
37
Characteristics of a variable shown in - | central tendency
includes the mean, median and mode values | they show us how clustered the data is
38
Characteristics of a variable shown in - | Dispersion
Range and standard deviation | how spread out the data is
39
Mode- can be used to describe -
nominal, ordinal and interval (scale) | value occurs most frequently
40
Median - can be used to describe -
the middle in ordered data | ordinal and interval (scale)
41
Mean - can be used to describe -
ONLY interval (scale)
42
Bivariate Data
Data for two variables | shown in scatterplot
43
Range =
measures between highest and lowest | large range may reveal outliers
44
standard deviation =
measures the distance (deviation) of each value from the mean
45
Range and standard deviation- can be used to describe -
interval (scale) (continuous)