A health app sends users eight reminders to take medication. Half of the users receive reminders at exactly the same time each day, while half receive them ...
Question 1 Report
A health app sends users eight reminders to take medication. Half of the users receive reminders at exactly the same time each day, while half receive them at changing times. The developer measures how many doses each group remembers over 14 days.
(a) Identify the dependent variable. [1]
(b) Describe one reason why the developer should use the same medication reminder wording for every user. [2]
(c) Evaluate whether remembered doses are a fully valid measure of actual medication-taking behaviour. [2]
Answer Details
(a) Number of doses remembered / reported as remembered over 14 days [1] (b) Different wording could affect how memorable or clear a reminder is [1]; keeping it constant means differences are more likely due to reminder timing rather than a confounding variable [1]. [2] (c) Users may remember a dose but not take it, or take it without remembering accurately [1]; therefore self-reported remembered doses may not measure real adherence validly [1]. [2]
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