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PSPR09 Forskningsmetod och statistik > Symboler/förkortningar > Flashcards

Symboler/förkortningar Flashcards

1
Q

μ

A

Medelvärde av hela populationen

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2
Q

x̄

A

Medelvärde av stickprov

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3
Q

σ

A

Standardavvikelse i populationen

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4
Q

σ2

A

Variansen i populationen

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5
Q

s

A

Standardavvikelse i ett stickprov

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6
Q

s2

A

Variansen i ett stickprov

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7
Q

O(A)

A

Odds för en händelse

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8
Q

OR

A

Oddskvot mellan två händelser

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9
Q

n

A

Antal observationer/datavärden

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10
Q

r

A

Pearsons produktmomentkorrelationskoefficient, linjär korrelation

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11
Q

rs

A

Spearmans rangkorrelationskoefficient

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12
Q

r2

A

Determinationskoefficient

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13
Q

Po

A

Proportionerlig överensstämmelse

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14
Q

Pc

A

Slumpmässig överensstämmelse

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15
Q

p-värde

A

Statistisk signifikans

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16
Q

ŷ (y hat)

A

Det genomsnittliga y-värde man får för varje x-värde

Det predicerade värdet av y i en regressionsanalys

17
Q

Σ

A

Summa

18
Q

b0

A

y-intercept, m-värdet

19
Q

b1

A

Riktningskoefficienten, regressionskoefficienten, k-värdet

20
Q

IQR

A

Interquartile range

21
Q

Q

A

Kvartilavvikelse

22
Q

K

A

Cohens kappakoefficient

23
Q

ρ

A

populationskorrelationen

24
Q

đ

A

medelvärdet av individernas d-värde

25
Q

η2

A

eta-två, proportion förklarad varians

26
Q

H0

A

Nollhypotesen = säger att det inte råder någon skillnad eller effekt

27
Q

H1

A

Alternativhypotesen = säger att det råder skillnad eller effekt

28
Q

SST

A

Sum of squares total = total variation i hela materialet för ANOVA

29
Q

SSB

A

Sum of squares between = variation mellan grupperna

30
Q

SSW

A

Sum of squares within = variation inom grupperna

31
Q

J för ANOVA-beräkningar

A

Antal grupper i materialet för ANOVA

32
Q

n för ANOVA-beräkningar

A

Antal personer i varje grupp

33
Q

N för ANOVA-beräkningar

A

Totalt antal personer i materialet

34
Q

χ2

A

Chi-två

PSPR09 Forskningsmetod och statistik (4 decks)

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