A test's central measures of mean, median, & mode are 100; the standard deviation is 15

One standard deviation to the right is a score of 115

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Ch. 1 Statistics & Scientific Method

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AP Psychology Statistics & Scientific method #psychology #introductorystatistics #scientificmethod

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Questions 16

Answers

1
Median is
The average
The middle score
The central score
The most frequent score
2
Researchers choose a group of subjects or a ____ to represent a larger group or ____
Sample - population
None of the above
Random assignment - total
Test group - whole
3
A test's central measures of mean, median, & mode are 100; the standard deviation is 15
One standard deviation to the right is 110
One standard deviation to the right is a score of 115
One standard deviation to the left is 75
One standard deviation to the left is 90
4
The independent variable is the
c. Variable that is given to subjects
a. Manipulated variable
d. A and C
b. Variable that changes
5
Jane finds that children who own dogs tend to achieve higher test scores. She determines that
None of the above
Owning a dog will improve a child's test scores
Intelligent children own dogs
Children who come from families with dogs, are smarter
6
Correlation is causation
Noooo!
Yessss!
7
A distribution has central measures of tendency: a mean, median, and mode
Each distribution has a median
Each distribution has a mean
All of the above
Each distribution has a mode
8
Range and Standard Deviation are measures of
Variation
Central Tendency
9
What is an hypothesis?
The theory or belief
The results of an experiment
A fact
A testable prediction
10
What is the I-knew-it-all-along phenomenon called?
The hindsight bias
The scientific method
Overconfidence
The false consensus effect
11
Studying one individual in great detail is called
A correlational study
An experiment
A case study
A survey
12
A positive correlation is a direct relationship
False
True
13
Calculate the median of the list: 6, 7, 12, 13, 18, 23, 24
12
13
18
14
Large representative samples _{(are/are not)} better than small ones
Are not
Are
15
A negative correlation is an inverse relationship
True
False
16
To ensure that their subjects accurately represent their population, researchers should use
Fixed assignment
Pre-determined subjects
People they randomly approach on the street
A random sample

Ch. 1 Statistics & Scientific Method Flashcards | StudBud