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An IERI – International Educational Research Institute Journal

Table 3 Easier and harder items for Norwegian 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

Open a link (− 0.23)

Navigate to a text-based URL (− 0.22)

Open a file of a specified file type (− 0.44)

Aspect 1.2: Accessing and evaluating information

Evaluate the reliability of a crowd sourced information website (− 0.46)

Aspect 1.3: Managing information

Modify the sharing settings of a collaborative document (− 0.34)

Aspect 2.1: Transforming information

Adapt information for an audience (− 0.31)

Aspect 2.3: Sharing information

Identify who received an email by carbon copy (− 0.38)

Aspect 2.4: Using information securely and safely

Explain a potential problem if a personal email address is publicly available (− 0.24)

Aspect 1.1: Knowing about and understanding computer use

Save a presentation with a new file name (0.41)

Open a link to a different page of a website (0.35)

Aspect 1.2: Accessing and evaluating information

Find specific information on a website (0.3)

Aspect 2.2: Creating information

Create a balanced layout for text and images in a website page (0.25)

Aspect 2.3: Sharing information

Range of relevant information on a topic included in a poster (0.31)

Aspect 2.4: Using information securely and safely

Differentiate paid search results from organic search results (0.31)

  1. Numbers in parenthesis are the DIF values