FREE AND STUDY GAMES ABOUT ITEM ANALYSIS EXAM

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FREE AND STUDY GAMES ABOUT ITEM ANALYSIS EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -43 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What is unadjusted test score?

Answer:

The total test score is usually the total number of items answered correctly (unadjusted)

Question 2: Why is Item difficulty is specific to the sample?

Answer:

For example, an item could be difficult for a young sample (1st grade) and easy for an older sample (6th grade).

Question 3: Items with negative values

Answer:

do not measure the same characteristic as the overall test and actually detract from the test.

Question 4: If a distracter is rarely or never selected, what does that mean?

Answer:

it is probably so obviously wrong that no one selects it - it is ineffective and should be revised.

Question 5: Items with D values close to 0.0

Answer:

do not contribute to the ability of the test of discriminate.

Question 6: Due to the effects of guessing

Answer:

for selected response items the optimal p is > 0.50.Question 7: On speed tests, measures of item difficulty and discrimination will largely reflect what?

Answer:

the location of the item in the test rather than the item's actual difficulty level and ability to discriminate.Question 8: Items that are correctly answered by every subject (p = 1.0) and items that are missed by every subject (p = 0.0) provide what?

Answer:

no information about individual differences and are of no value from a measurement perspective.

Question 9: In mastery testing situations where you want to select what?

Answer:

a specific proportion of subjects (e.g., employment screening), the optimal item difficulty value will equal the proportion of subjects you expect to pass the test.If you want to identify the top 50% of a sample, the optimal p value is?

Question 10: Item Discrimination & Mastery Tests

Answer:

Since it common for items on Mastery Tests to have high p values, standard procedures for determining item discrimination need to be modified.Special procedures have been developed for these tests (e.g., D based on subjects who received instruction versu

Question 11: pB

Answer:

the proportion of people in the bottom group who are correct on the item

Question 12: very difficult & very easy items tend to have

Answer:

smaller D values.

Question 13: What is a general rule suggested for items with D values?

Answer:

over 0.30 are acceptable and items with D values below 0.30 should be reviewed and possibly revised or deleted.

Question 14: D

Answer:

pT - pB

Question 15: The selection of distracters strongly influences what?

Answer:

the difficulty level of the item.

Question 16: Item Difficulty Index

Answer:

Ranges from 0.0 to 1.0. Large p indicates an easy item; a small p indicates a difficult item.

Question 17: Distracter Analysis

Answer:

With multiple-choice items, an incorrect alternative is referred to as a distracter.

Question 18: If the item has a marginal p or D and you want to do what?

Answer:

revise it, Distracter Analysis may help.

Question 19: p

Answer:

# of Subjects with Correct Answer/ Number of Subjects

Question 20: A large item-total correlation is taken as evidence of what?

Answer:

that an item is measuring the same construct as the overall test and discriminates between individuals high on the construct and those low on the construct.

Question 21: What is negative discrimination?

Answer:

With distracter analysis you examine the individual distracters to see if they have negative discrimination (i.e., selected more by people in the bottom group).

Question 22: Item Characteristic Curves

Answer:

ICC is a graph on which ability is plotted on the horizontal axis and the probability of a correct response is plotted on the vertical axis.

Question 23: What is adjusted test score?

Answer:

the total number of answers correctly omitting the item being examined (adjusted).

Question 24: Item Difficulty Index

Answer:

Requires correct/incorrect scoring. If there is partial credit awarded, you should dichotomize the scoring. (anything below 5 = 0, above 5 =1)

Question 25: Distracter Power Analysis

Answer:

Distracters should demonstrate negative discrimination. (don't want top group to be selecting the wrong answers). If they have positive discrimination, there is likely some ambiguity present.

Question 26: p Values & Mastery Tests

Answer:

On mastery tests in schools the students either pass or fail and there is the expectation that most students will eventually be successful. As a result, on many mastery tests it is common for items to have p values that are relatively high.