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PSYCH104 PSYCHOLOGICAL STATISTICS > LESSON 5 DESCRIPTIVE STATISTICS > Flashcards

LESSON 5 DESCRIPTIVE STATISTICS Flashcards

1
Q

IMPORTANT TERMS

Plotting Values of observation

A

Frequency distribution

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2
Q

IMPORTANT TERMS

Normal Distribution

A

Characterized by bell-curved shaped

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3
Q

TYPES OF DISTRIBUTION

Left side is mirror imgae of right side

A

Symmetric

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4
Q

TYPES OF DISTRIBUTION

Right tail is longer than the left

A

Positively skewed/Floor Effect

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5
Q

TYPES OF DISTRIBUTION

Left tail is longer than the right

A

Negatively Skewed/Ceiling Effect

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6
Q

TYPES OF DISTRIBUTION

One highest Point

A

Unimodal

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7
Q

TYPES OF DISTRIBUTION

Two high points

A

Bimodal

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8
Q

TYPES OF DISTRIBUTION

Can be Unimodal, Symmetric, or Asymptotic

A

Normal

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9
Q

IMPORTANT TERMS

Describes the number of peaks a distribution has

A

Modality

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10
Q

IMPORTANT TERMS

How peaked the data in the distribution

A

Kurtosis

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11
Q

TYPES OF KURTOSIS

When the degree of peakedness is greater than 3

A

Leptokurtic

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12
Q

TYPES OF KURTOSIS

When the degree of peakedness is equal to 3

A

Mesokurtic

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13
Q

TYPES OF KURTOSIS

When the degree of peakedness is less than 3

A

Platykurtic

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14
Q

IMPORTANT TERMS

Center where the distribution lies

A

Central Tendencies

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15
Q

IMPORTANT TERMS

Occurs more frequently in the data set

A

Mode

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16
Q

IMPORTANT TERMS

Scores are ranked in order of magnitude

A

Median

17
Q

IMPORTANT TERMS

The average scores

A

Mean

18
Q

IMPORTANT TERMS

Dispersion of dataset relative to its mean

A

Standard Deviation

19
Q

IMPORTANT TERMS

A measure of how representative a sample is likely to be of the population

A

Standard Error

20
Q

IMPORTANT TERMS

As the population size increases >30, the data becomes normal

A

Central Limit Theorem

21
Q

IMPORTANT TERMS

The accuracy of sample mean as an estimate of the mean in the Population, the ‘true value’ will fall

A

Confidence Interval

22
Q

IMPORTANT TERMS

The presence or absence of an effect

A

Hypothesis

23
Q

IMPORTANT TERMS

The strength of a statistical claim (magnitude)

A

Effect Size

PSYCH104 PSYCHOLOGICAL STATISTICS (6 decks)

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