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WorksheetsAP Psychology Stats
Total questions: 23
Worksheet time: 23mins
A carefully worded statement of the exact procedures used in a research experiment is known as
replication
operational definition
hypothesis
standardization
A computed measure of how much scores vary around the mean score dependent on the range and square root of total scores.
inferential statistic
standard deviation
descriptive research
average
When scores are "bunched up"in the center of a distribution, the
mean will be relatively low
standard deviation will be relatively low
correlation coefficiaent will be a negative number
standard deviation will be relatively high
Which of the following correlation coefficients expresses the weakest degree of relationship between two variables?
-0.12
+1.00
-0.99
+0.25
-0.50
Megalethia claims that her psychological research is “valid”. What does she mean?
The study was successful
The study proved her hypothesis
The study failed
The study was done in a lab
The study measures what it claims to measure
what is single blind?
research method in which a researcher manipulates one or more factors while controlling others
assigning participants to experimental/control group by chance.
an observation technique in which one person is studied in depth in the hope of revealing universal principles. If the individual studied is atypical, the results may be misleading.
A research method that helps reduce the chance that participants will guess what a study is about.
The difference between the highest and lowest scores in a distribution.
standard deviation
variance
range
dependent variable
The score that occurs most frequently
mean
median
mode
standard deviation
Which of the following is the mode for the data set: 4, 4, 5, 6, 7, 7, 7, 8, 9?
4
7
9
Which of the following is the median for the data set: 4, 4, 5, 6, 7, 7, 7, 8, 9?
4
7
9
Which ethical consideration is allowed only if there are absolutely no other alternative means of gathering quality data
Deception
Informed Consent
Professional relationship
Right to withdraw
Which of the following methods best limits the influence of unknown variables in an experiment?
Random assignment
Debriefing
Stratified Sampling
Subject matching
Correlational study
Which of the following measures can be precisely located on the graph of a skewed distribution without doing any calculations?
Mode
Median
Mean
Standard deviation
Variance
It is important for researchers to use precise operational definitions when...
They want to ensure that conditions are assigned randomly
They want to be able to replicate the experiment
They want to organize the hypothesis appropriately
They are conducting experimental research but not correlational research
They are conducting an experiment with no independent and dependent variables
Ms. Costas owns a business with 9 other employees. Her annual salary is $90,000. Her manager's salary is $60,000. Of her other employees, 3 earn $25,000 each and 5 earn $15,000 each.
The rang of this distribution is?
$75,000
$50,000
$25,000
$20,000
$15,000
Ms. Costas owns a business with 9 other employees. Her annual salary is $90,000. Her manager's salary is $60,000. Of her other employees, 3 earn $25,000 each and 5 earn $15,000 each.
For this distribution, the mean is?
Lower than both the median and the mode
Lower than the median, but higher than the mode
lower than the mode, but higher than the median
higher than both the median and the mode
the same as the median
If you convert a score into a z-score, the distribution will...
Change its shape
Change the location between scores in the distribution
Have a mean of zero and a standard deviation of one
None of the above
