Item Analysis Chapter 10: Understanding Test Item Functioning
29 Questions
1 Views

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 primary focus of item analysis?

  • Exploring test reliability and validity
  • Evaluating the entire test as a whole
  • Improving the test environment
  • Assessing the functioning of individual test items (correct)

    • What is the aim of item analysis?

  • To explain low reliability and validity
  • To eliminate all distractors in multiple choice questions
  • To develop better tests by improving individual items (correct)
  • To increase the number of test items

    • What does distractor analysis examine in a multiple choice test?

  • The frequency of each correct response chosen by examinees
  • The time taken by examinees to complete the test
  • The difficulty level of each answer option in a question
  • The effectiveness of the distractors in leading examinees away from the correct answer (correct)

    • What should good distractors do in a multiple choice test?

    <p>Equally distract examinees from the correct answer</p> Signup and view all the answers

    What does item difficulty analysis focus on?

    <p>Measuring how easy or difficult an item is for examinees</p> Signup and view all the answers

    What is the purpose of removing bad items in item analysis?

    <p>To improve the overall quality of the test</p> Signup and view all the answers

    What is the optimum difficulty level for a four-choice item according to Kaplan and Saccuzzo (2017)?

    <p>0.625</p> Signup and view all the answers

    What is the aim of Item Discrimination Analysis?

    <p>All of the above</p> Signup and view all the answers

    What is the formula for Discrimination index (D)?

    <p>(U / nu) - (L / nl)</p> Signup and view all the answers

    What does a negative Discrimination index (D) indicate?

    <p>The item is easier for lower performing individuals.</p> Signup and view all the answers

    What range of values can Interitem correlation have?

    <p>-1 to 1</p> Signup and view all the answers

    What is the percentage of guessing for a true-false item?

    <p>%50</p> Signup and view all the answers

    How does item difficulty change with plausible distractors?

    <p>It increases</p> Signup and view all the answers

    What does a p value of 1.0 indicate?

    <p>Everyone answers correctly</p> Signup and view all the answers

    Why are extreme p values (0 or 1) not optimal for measuring individual differences?

    <p>They restrict the variability of test scores.</p> Signup and view all the answers

    'Item-total correlation' helps in determining what aspect of an item's performance?

    <p>The relationship between total test score and item score.</p> Signup and view all the answers

    What defines optimum difficulty level for a true-false item?

    <p>0.75</p> Signup and view all the answers

    What does 'p' value measure in relation to test items?

    <p>The overall difficulty level.</p> Signup and view all the answers

    What is the capital city of Denmark?

    <p>Copenhagen</p> Signup and view all the answers

    What is the optimal difficulty level for a four-choice item, according to Kaplan and Saccuzzo (2017)?

    <p>0.625</p> Signup and view all the answers

    What does a discrimination index (D) of 0.50 indicate?

    <p>Item successfully discriminates between low and high scores</p> Signup and view all the answers

    What is the percentage of answering a true-false question by guessing?

    <p>50%</p> Signup and view all the answers

    What can a (-) item-total correlation indicate?

    <p>Item scores disagree with total test scores</p> Signup and view all the answers

    What does an item-total correlation of 0 indicate?

    <p>Item does NOT discriminate between low and high scores</p> Signup and view all the answers

    What does a p value of 1.0 indicate?

    <p>Everyone chooses the correct response</p> Signup and view all the answers

    What does a p value of 0.0 indicate?

    <p>Everyone chooses an incorrect response</p> Signup and view all the answers

    'How many people answered the item correctly.' Only applicable to maximum performance tests. What does 'p=1' mean?

    <p>Everyone answered correctly</p> Signup and view all the answers

    What is the optimum difficulty level for a true-false item, according to Kaplan and Saccuzzo (2017)?

    <p>0.75</p> Signup and view all the answers

    What is the aim of measuring the discriminating power of an item?

    <p>To find out the extent to which responses to each item discriminate those who receive high vs. low scores on the test.</p> Signup and view all the answers

    More Like This

    Correlation Analysis in Psychometrics
    80 questions

    Correlation Analysis in Psychometrics

    GenerousRing avatar
    GenerousRing
    Item Analysis in Test Construction
    20 questions

    Item Analysis in Test Construction

    SelfSufficientByzantineArt avatar
    SelfSufficientByzantineArt
    Item Analysis in Test Construction
    10 questions

    Item Analysis in Test Construction

    LavishAcropolis avatar
    LavishAcropolis
    Improving Test Items with Item Analysis
    5 questions

    Improving Test Items with Item Analysis

    ComplementaryBlackHole avatar
    ComplementaryBlackHole
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser