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Stats Chapter 1 terms > Terms > Flashcards

Terms Flashcards

1
Q

Population

A

The group being studied

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2
Q

Sample

A

The portion of the population data is taken from

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3
Q

Data

A

Collected numbers and information

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4
Q

Variable

A

Types of data collected

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5
Q

Parameter

A

A generalization or truth about an entire population

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6
Q

Statistic

A

The exact reading of the data from the sample group

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7
Q

Random Sampling

A

A sample taken from a population completely randomly

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8
Q

Stratified Sampling

A

A sample taken proportionally from a variety of groups after the population has been divided into said groups

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9
Q

Cluster Sampling

A

Dividing a population into groups and then sampling the entirety of some of those groups

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10
Q

Systematic Sampling

A

Sampling every Nth member of a population

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11
Q

Convenience Sampling

A

Sampling the most readily available group

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12
Q

Quota Sampling

A

Sampling population members with a specific trait

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13
Q

Observational Study

A

A study in which sampling is done with no controls, only observation

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14
Q

Experimental Study

A

A study in which certain variables are controlled for

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15
Q

Sampling Error

A

Error caused by the sample not actually being the entire population

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16
Q

Non-sampling Error

A

Errors caused by factors outside of the sampling

17
Q

Bias

A

Opinions interfering with the results

18
Q

Sampling Bias

A

Samples chosen with an accidental or purposeful bias

19
Q

Outlier

A

A data point that is significantly different from all other data points

20
Q

Qualitative Data

A

Data denoting qualities and non-numeric properties

21
Q

Quantitative data

A

Numeric data

22
Q

Continuous Data

A

Data that could include any real numbers, does not include counts such as how many people wear blue

23
Q

Discrete Data

A

Data that can be represented by only whole numbers

24
Q

Nominal Scale

A

Un-ordered, qualitative data

25
Q

Ordinal Scale

A

Ordered, qualitative data

26
Q

Interval Scale

A

Quantitative data with no set starting point

27
Q

Ratio Scale

A

Quantitative data with a set starting point

28
Q

Level of measurement

A

The scale being used

29
Q

Explanatory Variable

A

The independent variable

30
Q

Treatment

A

The values of the explanatory variable

31
Q

Response Variable

A

Dependent Variable

32
Q

Lurking Variable

A

A variable that affects the outcome but is not part of the experiment

33
Q

Control Group

A

The group that receives the placebo treatment

34
Q

Placebo Treatment

A

A null treatment

35
Q

Blinding

A

Not allowing the participants or data collectors to know the treatments of each group

36
Q

Double Blind Experiment

A

Blinding both the participants and data collectors

Stats Chapter 1 terms (1 decks)

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