Skip to main content

An IERI – International Educational Research Institute Journal

Table 4 Easier and harder items for German students

From: DIF as a pedagogical tool: analysis of item characteristics in ICILS to understand what students are struggling with

Easier

Harder

Aspect 1.1: Knowing about and understanding computer use

Click on a link (− 0.28)

Save a presentation with a new file name (− 0.39)

Switch applications to an internet browser from the taskbar (− 0.27)

Aspect 1.2: Accessing and evaluating information

Find specific information on a website (− 0.22)

Aspect 2.2: Creating information

Design and layout text in a poster (− 0.3)

Uses colour consistently throughout poster to convey meaning (− 0.27)

Establish a clear and complimentary role for a photo and its description on a website page (− 0.32)

Aspect 2.4: Using information securely and safely

Explain the features that make one of two passwords more secure (− 0.28)

Recognise that usage restrictions for images are a legal issue (− 0.22)

Aspect 1.1: Knowing about and understanding computer use

Open a link to a different page of a website (0.53)

Aspect 2.1: Transforming information

2.1: Excludes irrelevant information in a poster (0.35)

Aspect 2.4: Using information securely and safely

Identify information that is risky to include on a public profile (0.49)

Identify that an email does not originate from the purported sender (0.64)

Identify that a link’s URL does not match the URL displayed in the link text (0.25)

  1. Numbers in parenthesis are the DIF values