Eksperimentell Forskning Flashcards

1
Q

Type 1-feil

A

Falsk positiv. Feilaktig forkastning av nullhypotese.

Eldre mann – “du er gravid”

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2
Q

Type 2-feil

A

Falsk negativ. Feilaktig forkastning av alternativhypotese.

Gravid kvinne – “du er ikke gravid”
Blindhet

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3
Q

Begrensninger ved eksperimentell forskning?

A

Veldefinerte m, testbare hypoteser kan være utfordrende

Streng kontroll av faktorer kan påvirke DV
• Lab – Hawthorne effect

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4
Q

Nullhypotese?

A

Påstår at uavhengige variabler ikke påvirker avhengig variabel

Det er INGEN forskjell mellom de uavhengige variablene

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5
Q

Alternativhypotese?

A

Uavhengig variabel påvirker avhengig variabel

Det er en forskjell mellom de uavhengige variablene vi tester

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6
Q

Mål?

A

Finne statistisk bevis for å avvise nullhypotese for å kunne støtte den alternative hypotesen

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7
Q

Confounding?

A

Ting som påvirker de avhengige variablene utenom IV

• vær, lys, tid

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8
Q

Well-defined Hypothesis?

A

Specifies the dependent variables to be observed (and accurately measured)

Specifies the independent variables to be controlled

Testable

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9
Q

Major strength of experimental research?

A

Allows identification of causal relationships between entities or events

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10
Q

What should be randomized? (Ex)

A

Sample selection

Assignment of treatments or experiment conditions

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