Types of Variables and Levels of Measurement Flashcards

1
Q

phenomenon whose value remains the same
from person to person, from time to time, or
from place to place

A

Constant

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2
Q

information on any characteristic that can
vary

A

Variable

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3
Q

its values and categories cannot be measured with certainty because it changes over time

A

Variable

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4
Q

Give examples of constant

A

Value of pi
Gravity (g) = 9.8 m/s2
Speed of light
Avogradro’s number

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5
Q

Give examples of variable

A

smoking habits, age of gestation, weight,
educational attainment

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6
Q

Variables can be ______or _________ depending on the objective of the data collection

A

Qualitative, Quantitative

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7
Q

describe by features, generally by words
▪ categories are simply used as labels to distinguish one group from another

A

Qualitative

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8
Q

it cannot be used as basis to say that one group is greater or lesser, higher or lower, or better or worse than the other group

A

Qualitative

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9
Q

one whose categories can be measured or ordered according to quantity or amount

A

Quantitative Variables

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10
Q

Levels of Measurements

A

Nominal, Ordinal, Dischotomous, Interval, Ratio

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11
Q

variables that have no measurement scales
and no rank order

A

Nominal

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12
Q

examples of dichotomous

A

skin color, biological gender, health status

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12
Q

Examples of nominal

A

blood types, vegetable or fruit colors, marital status

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12
Q

is nominal quanti or quali?

A

quali

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12
Q

Represent categories, names, or labels (does not represent quantity; no implied order to the categories).

A

Nominal

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13
Q

Binary Variables. variables that only have two levels

A

Dichotomous

14
Q

Dichotomous and Nominal Variables are sometimes called ______ because the different categories are completely separate from each other

A

Discrete Variables

15
Q

variables that can be ranked or ordered either Qualitative or Quantitative, depending on the objective of the data collection

A

Ordinal

16
Q

Examples of ordinal

A

severity of disease, physical activity, likert scale

better to worse or
highest to lowest

17
Q

values are separated by equally spaced intervals and has no true zero point

A

interval

18
Q

has standard units and are infinite

A

INterval

19
Q

zero is _____ and does not indicate the absence of the quantity being measured

A

arbitrary; interval

20
Q

interval can only be

A

added or subtracted

21
Q

examples of interval

A

temperature in Celsius and Fahrenheit, IQ scores,

22
Q

there is equal intervals between values and has true zero point

A

ratio

23
Q

ratio can be

A

data can be added, subtracted, divided, and multiplied

24
Q

Examples of ratio

A

height, weight, distance, temperature in Kelvin

25
Q

Rank from most info to least info

A

R-I-O-D-N

26
Q

Qualitative is also known as

A

Categorical data

27
Q

Quantitative is also known as

A

Numerical data

28
Q

From the Greek word, “___” means “in two”; “___”
means “to cut

A

Dicho; temnien