Question 1

An effective distracter should be selected by:

Accepted Answer

at least some examinees and demonstrate negative discrimination

Question 2

In a class of 100 students,70 answer item #4 correctly and 30 answer it incorrectly.What is the p value of this item?

Accepted Answer

070

Question 3

A test item with p = .80 and D = .40 is:

Accepted Answer

relatively easy and discriminates well

Question 4

A test item with p = .50 and D = .40 is:

Accepted Answer

of intermediate difficulty and discriminates well

Question 5

While the item difficulty index is only applicable for _____________,the percent endorsement statistic can be calculated for ____________.

Accepted Answer

maximum performance tests; typical-response tests

Question 6

Item 10 on an exam had an item difficulty index equal to .00.From this information,one knows that:

Accepted Answer

the item was very difficult and all students answered it incorrectly

Question 7

What is the approximate optimal Item Difficulty Index for a multiple-choice item with 4 choices?

Accepted Answer

075

Question 8

On ___________ tests,measures of item difficulty largely reflects the position of the item in the test.

Accepted Answer

speed

Question 9

A test item with a p = .70 and D = .45 is:

Accepted Answer

relatively easy and discriminates well

Question 10

A test item with a p = .30 and D = .15 is:

Accepted Answer

relat ively difficult and does discriminate well

Question 11

Reliability relates to test ___________.

Accepted Answer

scores

Question 12

Items with a difficulty index of _______ do not contribute to the measurement characteristics of a test.

Accepted Answer

10

Question 13

A general recommendation is to use items with p values that have a range of approximately _________ around the optimal value.

Accepted Answer

020

Question 14

The item-total correlation is typically calculated using which correlation?

Accepted Answer

Point-biserial correlation

Question 15

Your employer wants a test that will help him to select the upper 30% of employees to consider for new positions.It would be beneficial for the item difficulty index to average around:

Accepted Answer

030

Question 16

As a general rule,the authors of the chapter suggest that items with D values greater than ______ are acceptable.

Accepted Answer

030

Question 17

On a maximum performance test administered to 100 students,60 students correctly answer item #4.The item difficulty index equals:

Accepted Answer

060

Question 18

On a reading comprehension exam,the proportion of examinees in the top group that answered item 5 correctly equaled 0.70 and the proportion of examinees in the bottom group that answered item 5 correctly equaled 0.10.What is the discrimination index for item 5?

Accepted Answer

060

Question 19

What is the optimal Item Difficulty Index on a test consisting of only constructed response items?

Accepted Answer

050

Question 20

When a test item has a discrimination index ______,it is considered to be acceptable by the chapter authors.

Accepted Answer

greater than 030

Quiz 7: Item Analysis: Methods for Fitting the Right Items to the Right Test