Social Statistics Flashcards

get an A in Social Statistics (105 cards)

1
Q

a set of procedures used by social scientists to organize, summarize, and communicate numerical information

A

statistics

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2
Q

information represented by numbers, which can be the subject of statistical analysis

A

data

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3
Q

research process

A

a set of activities in which scientists engage to answer questions, examine ideas, or test theories

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4
Q

five stages of the research process

A
  1. asking the research question
  2. forming the hypothesis
  3. collecting data
  4. analyzing data
  5. evaluating the hypothesis
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5
Q

empirical research

A

research based on evidence that can be verified by using our direct experience

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6
Q

theory

A

a set of assumptions and propositions used to explain, predict, and understand social phenomenon

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7
Q

hypothesis

A

a statement predicting the relationship between two or more observable attributes

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8
Q

variable

A

a property of people or objects that takes on two or more values

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9
Q

unit of analysis

A

the object of research, such as individuals, groups, organizations or social artifacts

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10
Q

dependent variable

A

the variable to be explained, the effect

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11
Q

independent variable

A

the variable expected to count for (the cause f) the dependent variable

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12
Q

nominal level of measurement

A

numbers or other symbols are assigned to a set of categories for the purpose of naming, labeling, or classifying the observations

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13
Q

there should be enough categories composing the variables to classify every observation

A

exhaustive

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13
Q

can nominal categories be rank-ordered?

A

no

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14
Q

there is only one category suitable for each observation

A

mutually exclusive

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15
Q

ordinal level of measurement

A

numbers are assigned to rank order categories. ranging from low to high or high to low.

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16
Q

interval-ratio level of measurement

A

measurement for all cases are expressed in the same units and equally spaced. Interval- ratio values can be rank ordered.

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17
Q

Dichotomous Varaible

A

a variable that has only two values

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18
Q

Number of Children per family is an example of a continuous or discrete variable?

A

discrete

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19
Q

variables that do not have a minimum sized unit of measurement. their range of values can be subdivided into increasingly smaller fractional values.

A

continuous variables

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20
Q

variables with a minimum sized unit of measurement that can not be subdivided.

A

discrete variables

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21
Q

Length is an example of continuous or discrete variable?

A

continuous

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22
Q

population

A

the total set of of individuals, objects, groups, or events in which a researcher is interested.

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23
Q

sample

A

a subset of cases selected from a population

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24
population
the process of identifying and selecting a subset of a population for study
25
descriptive statistics
procedures that help us organize and describe data collected from either a sample or a population
26
inferential statistics
the logic and procedures concerned with making predictions or inferences about a population based on observations and analysis of a sample.
27
what are two overarching sets of questions we ask in social statistics?
How do social arrangements affect the human condition? How do humans influence these social arrangements?
28
The process of making appropriate empirical observations or measurements.
social research
29
what is the purpose of social research?
test theories or gain sufficient knowledge about some portion of reality so that you can theorize about it.
30
numerical information collected for research purposes
data
31
data that has been carefully and systematically collected
empirical data
32
a commitment to exploring data rather than proving or disproving a certain concept.
value neutrality
33
Mark Twain said There are three kinds of lies:
Lies, damn lies and statistics
34
logical groupings of attributes (something that varies)
variables
35
the number or category that a score can have
value
36
a particular person's value on a variable
score
37
the variable to be explained (the effect)
dependent variable
38
the variable expected to account for the dependent variable (the cause)
independent variable
39
what variable is always the property you are trying to explain? That is always the object of research?
dependent variable
40
Social scientists begin studies with (_________________________ ) and then investigate using empirical evidence
questions
41
an explanation of how things relate to eachother
theory
42
a statement about the relationship between variables that is specific and exact
hypothesis
43
hypothesis that suggests there is no relationship between the variables under study.
null hypothesis
44
What are the 3 criteria for causality?
1. A statistical correlation between the two variables. 2. The cause takes place before the effect in time order. 3. There is no third variable that can explain the observed correlation as false
45
spurious
false
46
a relationship between variables that is not genuine, or is a coincidence
spurious
47
ecological fallacy
assuming something learned about an ecological unit says something about the individuals in the unit
48
drawing inferences about groups using evidence about individuals.
reductionistic fallacy
49
inference
a conclusion or opinion that is formed because of known facts or evidence
50
Σ
Upper Case Sigma Means you should add up the sum of all the variables
51
Y
represents the score of a variable
52
ΣY 2
the sum of squared scores
53
(ΣY)2
the sum of scores squared
54
3(4)
multiply 3 x 4
55
(5)6
multiply 5x6
56
(4)(2)
multiply 4x2
57
9∗ 6
multiply 9x 6
58
4 /6
divide 4 by 6
59
(≠)
not equal to
60
>
greater than
61
<
less than
62
greater than or equal to
63
less than or equal to
64
P
proportion
65
f
frequency
66
N
total number of cases in a catagory
67
rules of precedence
solve all squares and square roots first, then multiplication and division, and, finally, all addition and subtraction from left to right
68
Do you solve an expression with parentheses or brackets first ?
parentheses
69
turning abstract conceptual ideas into measurable observations
operationalize
70
variable that has a category of measurement that can be infinitetly devided
continuous variable
71
variable that has a category of measurement that are countable and indivisible
discrete variable
72
dummy variable
has only two categories
73
a curve, you fold it in half it is the same
symmetrical
74
a curve that has a single peak in the center
unimodal
75
where do the mean median and mode reside on a curve?
in the middle
76
a line that gets closer and closer to a curve as the distance gets closer to infinity.
asymptotic
77
information acquired by scientists through experimentation and observation
empirical data
78
the number that occurs most often in a data set
mode
79
the middle value when a data set is ordered from least to greatest
median
80
average found by adding all numbers in the data set and then dividing by the number of values in the set
the mean
81
a relationship between two events, or variables, in which one event or process causes an effect on the other event or process
causality
82
the three criteria for causality
time order correlation non spuriousness.
83
time order
the cause takes place before the effect
84
Relationship between two variables that is not due to variation in a third variable.
non spuriousness.
85
a coincidence caused by a third variable, relationships between variables that arent' genuine
spurious
86
the level of social life on which the research focuses.
unit of analysis
87
individuals, groups, organizations, and geographic sections are all
units ofanalysis
88
when we take information obtained at a higher level and apply it down to a lower level.
ecological phallacy
89
dependability or consistency of a measure. (if you repeat a survey you should get consistent results)
reliability
90
refers to how well the measure is an accurate representation, the concept one to capture
validity
91
_____________ statistics analyze samplings to make predictions about larger populations measures we use to make inferences about the population from which we drew our sample
inferential
92
computations of statistics that describe the characteristics of a sample or the relationships among variables in a sample
descriptive
93
the number of observations in each category of a variable
frequency
94
P= f ____ N
porportion
95
N
total number of cases
96
a relative frequency obtained by dividing the frequency in each category by the total number of cases and multiplying by 100
percentage
97
Numbers that describe what is typical or average (central) in a distribution
central tendency
98
Numbers that describe diversity or variability in the distribution
measures of variability
99
an idea of how the scores are scattered around the distribution
dispersion
100
an idea of how the scores are scattered around the distribution
IQV index of qualatative variation
101
A quick (but rough) measure of variability It is the difference between the highest and lowest scores in the distribution
range
102
R = highest score in the distribution - lowest score in the distribution. what is r?
range
103
a measurement of the spread between numbers in a data set.
variance
104
A measure of variability that we obtain by summing the squared deviations from the mean, dividing by N, and then taking the square root  Allows us to present a meaningful measurement (in relation to variance which is presented in units squared)
standard deviation