Quizizz 2 Attempt 1

Quizizz 2 Attempt 1

University

31 Qs

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Quizizz 2 Attempt 1

Quizizz 2 Attempt 1

Assessment

Quiz

Science

University

Medium

Created by

Thomas James

Used 2+ times

FREE Resource

31 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Which of these best describes a classic p-value?
Assuming the null hypothesis isn’t true, the probability of obtaining the same or more extreme result than one previously seen
Assuming the null hypothesis is true, the probability of obtaining the same or less extreme result than the one observed
Probability of the result being due to chance
How effective an intervention is
Assuming the null hypothesis is true, the probability of obtaining the same or more extreme result than the one observed

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Respectively, Type 1 and Type 2 errors are…
Rejection of a ‘true’ null & retaining a ‘false’ null
Rejection of a ‘false’ null & retaining a ‘true’ null
Retaining a ‘true’ null & rejection of a ‘false’ null
Retaining a 'false' null & rejection of a 'true' null
Rejection of a 'true' null & accepting a ‘false’ null

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

P-rep is…
Analogous to a p-value
A descriptive statistic
Very useful
A robust measure of replicability
A measure of reproducibility

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Alpha controls the rate of…
Type 1 errors
Type 2 errors
Type 3 errors
Reproducibility
Confirmation Bias

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Beta controls the rate of…
Type 1 errors
Type 2 errors
Type 3 errors
Reproducibility
Confirmation Bias

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Statistical power can be defined as…
Assuming the alternative hypothesis is false, the probability that any test will reject the null hypothesis
Assuming the alternative hypothesis is true, the probability that a specific statistical test will reject the null hypothesis
Assuming the alternative hypothesis is true, the probability that any statistical test will reject the null hypothesis
Assuming the null hypothesis is true, the probability of obtaining the same or more extreme result than the one observed
How effective an intervention is

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

As a general rule, smaller the effect size of interest…
Smaller the sample size needs to be for proper power
It doesn’t matter what the sample size is for proper power
Larger the number of variables needs to be used for proper power
Larger the sample size needs to be for proper power
All of the above

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