Experimental Research
Miscellaneous Research
Stats
Ethics
Miscellaneous
100
Identify the Independent variable in this study:
A school counselor wants to test whether listening to classical music before a math test improves students’ performance. One group of students listens to classical music for 15 minutes before their test, while another group sits quietly. Both groups then take the same math test, and their scores are compared.
What is Classical music and sitting quietly?
100
identify this distribution.
What is a positive skew?
100
The difference between the highest and lowest number in a set.
What is range?
100
When conducting sensitive psychological research, this ethical requirement obligates researchers to store data securely, anonymize responses when possible, and limit access to only those directly involved in the study.
What is confidentiality?
100
A psychologist collects data from hundreds of adults on their daily caffeine intake and average hours of sleep, then analyzes the relationship between the two. She finds that as caffeine intake increases, hours of sleep decrease. This type of study is called this.
What is correlation research?
200
Identify the experimental group.
A nutritionist wants to see if drinking a smoothie with added protein powder improves athletes’ endurance. She splits the athletes into two groups: one group drinks a smoothie with protein powder every morning for two weeks, while the other group drinks a smoothie without protein powder. After two weeks, she measures their endurance using a treadmill test.
What is the group that drinks a smoothie with protein powder every morning for two weeks?
200
A teacher gives a math test to her 11th-grade class, and the scores form a normal distribution with a mean of 80 and a standard deviation of 5. About 68% of the students scored between which two numbers?
What is 75 and 85?
200
The median of 10, 20, 16, 12.
What is 14?
200
Individuals voluntarily agree to participate after being provided with the study's purpose, risks/ benefits, and their rights as participants.
What is informed consent?
200
In a social experiment, participants are misled about the purpose of a task to measure conformity. At the end, researchers thoroughly explain the real goals and answer all questions. This ethical requirement is called this.
What is debriefing?
300
This type of sample is not achieved if a researcher surveys only AP students but claims their opinions represent the entire school.
What is representative sample?
300
The likelihood that the results from a study are not due to random chance and can be generalized to a population.
What is statistical significance?
300
Extreme scores that have a tendency to get closer to the mean when measured again.
What is regression to the mean?
300
aA group that approves research proposals to ensure that they meet ethical standards & protect the rights of participants.
What is the Institutional Review Board?
300
Participants are unaware if they are in the experimental or control group.
What is a single blind study?
400
Each participant has an equal chance of participating in a study.
What is random sample?
400
The statistical analysis of more than one study to compare results and draw conclusions.
What is meta analysis?
400
A distribution in which the bulk of the data clusters on the right side, with the tail going left, suggesting exceptionally low values stretching it in that direction
What is negative skew?
400
In a psychology experiment, participants are told they’re completing a simple memory test, but the real goal is to observe their reactions to stress. Researchers reveal the true purpose of the study only after it’s over.
What is deception?
400
In a clinical trial testing a new headache medication, one group of participants receives the real drug, while another group receives a sugar pill that looks identical but has no active ingredients. Neither participants nor researchers know who receives which treatment. This harmless treatment, given to control for participants’ expectations, is called this.
What is a placebo?
500
What is the operational definition of “academic performance” in this study?
A psychologist is examining whether the number of hours teenagers sleep at night is related to how well they do in school. She collects students’ official semester grade point averages from school records and asks students to log their nightly sleep over a two-week period.
What is semester grade point averages?
500
To test whether background noise affects reading comprehension, a researcher randomly assigns students to take a reading test in either a quiet room or a room with loud music. She keeps the text, timing, and instructions the same for everyone. This research method is called?
What is an experiment?
500
SAT scores in a class are normally distributed with a mean of 1000. About 68% of students scored between 940 and 1060. This number, showing the average distance scores fall from the mean, can be calculated from that range.
What is 60? (Standard deviation)
500
A team studying preschoolers’ reactions to new toys first explains the study in simple terms and checks that each child is comfortable participating, even though parents already signed consent forms. This step is called this.
What is informed assent?
500
A researcher believes that left-handed people are more creative than right-handed people. While reading articles, she only notices studies that support her belief and ignores those that contradict it. This tendency to focus on information that confirms existing beliefs is called this.
What is confirmation bias?