Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

NHST Framework and Statistical Power Quiz

10 Questions

0 Views

NHST Framework and Statistical Power Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of a post hoc power analysis?

To establish the sample size required for a study

To estimate power after analyzing the data (correct)

To calculate sensitivity after data collection

To determine the effect size before data collection

When conducting a sensitivity analysis, what is the goal?

To determine the sample size needed for a study

To evaluate the statistical power of the study

To find the expected effect size

To identify the minimum detectable effect size (correct)

In Setting Power Exp. 1, what was the effect size that could be detected with a power of 0.80?

dz = 0.317 (correct)

dz = 0.430

dz = 0.48

dz = 0.80

What role does alpha play in determining statistical power?

It sets the level of significance for hypothesis testing Signup and view all the answers

Why is post hoc power analysis conducted after data analysis?

To determine if the sample size was adequate Signup and view all the answers

What does the observed effect size of dz = 0.430 represent in Setting Power Exp. 2?

The actual effect size found in Experiment 2 Signup and view all the answers

How does changing (1 - beta) impact sensitivity in sensitivity analysis?

(1 - beta) influences detectable effect sizes in sensitivity analysis Signup and view all the answers

What is the primary purpose of an a priori power analysis?

To establish sample size required before data collection based on expected effect size Signup and view all the answers

Why is understanding statistical power important in research studies?

It helps researchers assess the likelihood of detecting true effects when they exist Signup and view all the answers

What does setting power at 0.80 indicate about a study in terms of sensitivity?

The study will have higher sensitivity to detect small effects Signup and view all the answers

Use Quizgecko on...

Open

Browser