Example of Discrimination

One important aspect of testing is level of discrimination, questions that ask the student to choose the best, most, important, or first require that the student think critically.   In the example question students are ask to discriminate between several answers and indicating the best answer.  More than one may be plausible, but one is correct. In this example, you can see that all distracters were selected, with C being the weakest response.

 

1. Question Name: F-Morphine Side Effe      Type: MC      Objective: Analgesics      Item Bank: Pharmacology

        A client has been using Morphine Sulfate for three days.  The nurse's assessment reveals that the client has not had a bowel movement. What is the best nursing action?

  A.          Increase the client's activity level

*  B.         Administer PRN Ducosate Sodium (Colace)

  C.           Ask the client why they have not had a bowel movement

  D.          Request more fruit and vegetables from the dietary department

 

Correct Answer:    B

 Keywords:

Points:                     1.00                     Penalty:                     0.00                     Score Mode:                     Active

Difficulty:                     Medium                     Discrimination:                     Medium

Item Analysis: Cumulative

No. of Students Responded:                 93                            

Correct Responses:      Total Group:             67.74

                        

Upper 27% of Group:             80.00        Lower 27% of Group:             68.00             Point Biserial:                 0.18

Response Frequencies (%)

                                           A                 B                     C                 D

Cumulative:                 13.98                 67.74                 1.08                 17.20