UvA Psychology Selection Mock EXAM 2025
COMPLETE EXAM QUESTIONS AND WELL DETAILED
ANSWERS |ALREADY GRADED A+|| Latest update
2025/26
In a study using 'blind observers' among children at a primary school in Amsterdam, it
was found that those who had been breast-fed had a higher IQ, on average, than those
who had not been breast-fed. On the basis of this outcome, a journalist wrote an article
with the heading: "Breastfeeding leads to higher IQ".What is the main reason that this
conclusion stated in the newspaper headline is not justified by the study described
above? -CORRECT ANSWER there are other possible explanations for the results of
the study.
In a stress study among a group of test subjects, the researcher finds a correlation
between variable A and variable B that is equal to 0.6.What does this mean? -
CORRECT ANSWER The test subjects who score higher on variable A also score
higher on variable B, on average.
What is a solution to the effect of observer bias? -CORRECT ANSWER A 'blind' study
design.
A researcher evaluates 20 photographs of people with different facial expressions (e.g.,
angry, sad, etc.). He puts the photographs into one of two categories: negative facial
expressions and positive facial expressions. Unconsciously, he puts photos of people
, he finds attractive more often in the positive category.What is happening here? -
CORRECT ANSWER Observer bias.
A researcher would like to know more about the attitudes of the Amsterdam population
aged between 18 and 50 years with respect to factory farming. To do this, he positions
himself during the morning rush hour at the main entrance of Amsterdam Central
Station and asks everyone who happens to pass by whether they live in Amsterdam
and whether they would like to CORRECT ANSWER a few questions about factory
farming. What type of random sampling is this? -CORRECT ANSWER convenience
sampling.
Observer bias occurs when a researcher... -CORRECT ANSWER incorrectly observes
the situation being studied.
Observer effects occur when the observer... -CORRECT ANSWER ...affects the
situation being studied.
What is an example of an 'unobtrusive measure'? -CORRECT ANSWER A researcher
determines the popularity of diet potato chips by looking at how many have been eaten
after the end of a birthday party.
While a youth football team is training, a scout comes to watch them to select highly
talented children for a team of young promising players. The presence of the scout
COMPLETE EXAM QUESTIONS AND WELL DETAILED
ANSWERS |ALREADY GRADED A+|| Latest update
2025/26
In a study using 'blind observers' among children at a primary school in Amsterdam, it
was found that those who had been breast-fed had a higher IQ, on average, than those
who had not been breast-fed. On the basis of this outcome, a journalist wrote an article
with the heading: "Breastfeeding leads to higher IQ".What is the main reason that this
conclusion stated in the newspaper headline is not justified by the study described
above? -CORRECT ANSWER there are other possible explanations for the results of
the study.
In a stress study among a group of test subjects, the researcher finds a correlation
between variable A and variable B that is equal to 0.6.What does this mean? -
CORRECT ANSWER The test subjects who score higher on variable A also score
higher on variable B, on average.
What is a solution to the effect of observer bias? -CORRECT ANSWER A 'blind' study
design.
A researcher evaluates 20 photographs of people with different facial expressions (e.g.,
angry, sad, etc.). He puts the photographs into one of two categories: negative facial
expressions and positive facial expressions. Unconsciously, he puts photos of people
, he finds attractive more often in the positive category.What is happening here? -
CORRECT ANSWER Observer bias.
A researcher would like to know more about the attitudes of the Amsterdam population
aged between 18 and 50 years with respect to factory farming. To do this, he positions
himself during the morning rush hour at the main entrance of Amsterdam Central
Station and asks everyone who happens to pass by whether they live in Amsterdam
and whether they would like to CORRECT ANSWER a few questions about factory
farming. What type of random sampling is this? -CORRECT ANSWER convenience
sampling.
Observer bias occurs when a researcher... -CORRECT ANSWER incorrectly observes
the situation being studied.
Observer effects occur when the observer... -CORRECT ANSWER ...affects the
situation being studied.
What is an example of an 'unobtrusive measure'? -CORRECT ANSWER A researcher
determines the popularity of diet potato chips by looking at how many have been eaten
after the end of a birthday party.
While a youth football team is training, a scout comes to watch them to select highly
talented children for a team of young promising players. The presence of the scout
