A social media company pilots two notification designs with adult users. Design A displays a red badge; Design B displays a neutral grey dot. The company re...
Question 1 Report
A social media company pilots two notification designs with adult users. Design A displays a red badge; Design B displays a neutral grey dot. The company records how many times each person opens the app over seven days and asks about mental health afterwards.
(a) Name the variable that should be randomly allocated. [1]
(b) Describe one reason a repeated-measures design could be unsuitable here. [2]
(c) Explain one ethical concern about measuring app-opening behaviour. [2]
(d) Evaluate one advantage of using seven days of data rather than one day. [2]
Answer Details
(a) Notification design received, red badge or grey dot [1] (b) Participants would see both designs [1], so experience of the first design could alter responses to the second through order effects or comparison [1] (c) App-opening records are personal behavioural data [1], so participants need informed consent and secure/anonymised handling of their data [1] (d) A week is more likely to represent typical use [1] and reduces the effect of an unusual single day, such as a weekend or illness [1].
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