Answer:
A psychologist counts how many digits a 70 years old man can remember.
Step-by-step explanation:
The social desirability bias is the tendency of survey responders to answer in a way that it will make them look better to the eyes of the examiner.
a) A psychologist counts how many digits a 70 years old man can remember: in this case, the man cannot control the total amount of digits he can remember, therefore, this study is free of social desirability bias.
b) Â Parents report number of hours their children spend on social media a day: In this case, parents can lie about the number of hours their kids spend on social media to make it look as they have a good style of parenting. Therefore, this study is not free of social desirability bias.
c) Â A researcher observes a married couple discuss their recent argument: In the case that the couple knows they are being observed, we can expect them to behave differently than how they would behave if they weren't being observed (this is a bias observed in psychology), therefore this is not free of social desirability bias.
d) A doctor asks patients how many cigarettes they smoke in a week: again, people could lie and give a smaller number to look better to the eyes of the doctor, therefore this is not free of social desirability bias.
