Chapter 6 Flashcards

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1
Q

Distribution

A

Any organized set of data

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2
Q

Transformation

A

Math procedure for converting a set of scores to a a different set

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3
Q

Frequency

A

How often a score occurs

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4
Q

Nominal

A

Name

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5
Q

Ordinal

A

Rank order, unequal intervals

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6
Q

Interval

A

Equal intervals, no true 0

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7
Q

Ratio

A

True 0

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8
Q

Continuous scale

A

Allows for fractions

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9
Q

Discrete scale

A

Only whole number amounts

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10
Q

Dichotomous scale

A

Only two amounts

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11
Q

Simple frequency distribution

A

Number of times a score occurs

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12
Q

Raw scores always where

A

X axis

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13
Q

Bar graph

A

Do not touch, nominal and ordinal data; discrete scales

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14
Q

Histogram

A

Bars touch; continuous scale; ratio and interval

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15
Q

Frequency polygon

A

Connect data points with a line; many subjects; ratio and interval

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16
Q

Normal curve

A

Symmetry

17
Q

Tail of distribution

A

Where extreme scores are

18
Q

Kurtosis

A

How fat/skinny

19
Q

Skewed

A

Not symmetrical

20
Q

Negatively skewed

A

Extreme low scores

21
Q

Positively skewed

A

Extreme high scores

22
Q

Bimodal

A

Two humps

23
Q

Rectangular

A

All frequencies are equal

24
Q

Relative Frequency

A

Frequency over N

25
Q

Frequency

A

Number of times a score occurs

26
Q

Area under the curve

A

Percentiles, proportions, and relative frequencies

27
Q

Cumulative frequency

A

Frequency of all scores at or below a particular score

28
Q

Percentile

A

Percent of all scores at or below a certain score