PSE review part 1 (stats)

Which statement(s) about Fisher’s basic inferences is/are true?

•    If the H0 is true, it is unlikely to observe the present effect.

•    α = p(H0)

•      α is the probability of the observed effects, given that H0 is true.

•     All statements are true.

• H0 is basically the opposite of the suspected outcome.

Answer explanation

Answer can be found in the stats notes

Which statement(s) is/are true?

• All Statements are true

•  the dependent variable is the one being measured

• the independent variable affects the dependent variable

• A quasi-experiment has to be interpreted with caution

• in a quasi-experiment, subjects are assigned randomly

Answer explanation

if you assign subjects to only by the value of their income, you are conducting...

• a quasi-experiment

• a full/true experiment

    Which statement(s) about the Alpha and Beta Error is/are true?

•    Alpha error = Type 1 error.

• Type 1 error = accepting H0 when in fact H1 is true

• type 2 error = accepting H1 when in fact H0 is true

• if you find the effect you suspected to find in your theory even though there is none in reality you have made a type 1 error

• all statements are true

Alpha is always set at 5%

• true

• false

which statement(s) is/are false?

•     Group 1 is being manipulated with a medication, thus they are in treatment condition.

•     Group 1 has not been manipulated at all, thus they are in treatment condition.

•    The test before the experiment ends is called Pre-Test.

•     To check for changes through an intervention it mostly makes sense to conduct a Pre- and a Post-Test.

•   No statement is true.

which statement(s) is/are true?

•   No statement is true.

•      A 2x2 design allows to compare 8 conditions.

• a 3x2x2 designs has three independent variables (IV).

•      If you ask men and women a yes, no or maybe question, you would have a 3x2x2 design.

•      If you ask men and women a yes or no question, you would have 2x2 design.

      Which one does thematically not belong?

• error variance

• assignment error

• sampling error

• alpha error

• measurement error

which statement(s) is/are true?

•    The s in Cohen’s formula stands for the pooled standard deviations for the groups.

•     The μ1 in Cohen’s formula stands for the median of group one.

•    d = μ1 − μ2 / s

•     Cohen’s d relates effect to variation

•   Cohen’s d = measurement for effect size.

the three indicators for causality are...

•      Temporal antecedence, correlation, exclude alternatives

•      Temporal antecedence, covariation, correlation

•     Temporal antecedence, covariation, exclude alternatives

• temporal antecedence, correlation, alternatives

• none of the above