Psychology (Latest 2026/2027 Update) |
Verified Questions & Correct Answers |
Grade A | Portage Learning
Academic Year
Q: Janelle has five brothers who are 5, 7, 7, 10, and 16 years of age. The mean age of Janelle's
brothers is:
Answer
9
Q: The mean, median, and mode are measures of _____.
Answer
central tendency
Q: Differences between two samples are MOST likely to be statistically significant if the
samples are:
Answer
large
Q: The mean, median, and _____ are all measures of central tendency.
Answer
mode
Q: To measure variation in a set of data, one could calculate the _____ by subtracting the
lowest score from the highest score.
Answer
range
,Q: The _____ is a measure of _____.
Answer
median; central tendency
Q: In terms of variation in data, averages that are derived from scores with _____ variability
are more reliable than averages based on scores with _____ variability.
Answer
low; high
Q: When trying to interpret a bar graph, it is important to check the _____ and note their
_____.
Answer
scale labels; range
Q: Rayshawn is trying to decide between two schools for his 8-year-old daughter. The
Einstein School states that the average intelligence test score of its students is 125, with a
standard deviation of 5.3. The Marie Curie School reports that the average intelligence test
score of its students is 125, with a standard deviation of 15.6. If he is MOST interested in
finding a school that has children with diverse abilities, which school should he choose for his
daughter?
Answer
the Marie Curie School
Q: Ahmed has five sisters who are 4, 4, 5, 9, and 10 years old. The _____ of his sisters' ages
is 5.
Answer
median
, Q: The _____ is a measure of variation that uses information from each score.
Answer
standard deviation
Q: Dr. Perry is examining academic performance based on parental income level. Dr. Jian
finds that the sample variances are small and the differences between the groups are large.
Which is MOST likely?
Answer
results are significant
Q: _____ statistics can be used to determine the generalizability of results.
Answer
Inferential
Q: Consider this set of numbers: 1, 1, 2, 2, 3, 3, 4, 7, 7, 7, 8, 15. The mode of the set is:
Answer
7
Q: Roderick is trying to decide between two schools for his 9-year-old daughter. Two schools
state that the average intelligence test score of its students is 125, which is higher than the
norm of 100. If Roderick is MOST interested in finding a school that has children with diverse
abilities, which statistic about the intelligence test scores would he want to know from both
these schools?
Answer
the standard deviation
Q: Regina has five brothers who are 4, 6, 6, 9, and 15 years of age. The mean age of Regina's
brothers is _____.
Answer
8