The app may be called the “Fonts” app.

Objective of the app is to determine for (a) typeface, (b) font size and (c) line spacing that a child finds easy to read from the screen of a smartphone.

--> FIRST SCREEN

The app allows the user to select typeface, font size and line spacing. Three dropdown menus will be used.

Typefaces:

• Arial
• Sassoon Primary
• Times New Roman
• Bodoni MT

Font size:

• 12
• 14
• 16

Line spacing:

• 1
• 1.5

There should be a “Next” button at the bottom of the first screen.

• The app will display a paragraph of text with 100 to 110 words.

• The app will have 24 paragraphs which will be used randomly with different combinations of typeface, font size and line spacing.

• The selected typeface, font size and line spacing will be used.

• Portrait orientation will be used.

• Vertical scrollbar will be used if necessary for any combination.

• However, the reading area will be the same for all combinations.

• There will be three buttons at the bottom of the screen which will be always visible, viz. “Start”, “Stop” and “Next”.

• The observer will press the Start button and the child will start reading the paragraph.

• When the child ends, the observer will press the Stop button.

• All observations will be made during this period only.

THIRD SCREEN

• The app will show the following results:
• Reading time (in milliseconds)
• Number of eye fixations
• Cumulative eye fixation duration (in milliseconds)

At the bottom, there will be a button “Another Trial” which will take the user to the first screen.