PSYCOLOGY QUIZ
The two properties about a set of measurements of a dependent vari- able that we are most interested in describing are:
number of scores.
The generally preferred measure of central tendency
...
PSYCOLOGY QUIZ
The two properties about a set of measurements of a dependent vari- able that we are most interested in describing are:
number of scores.
The generally preferred measure of central tendency is usually the
Which of the following is the most useful descriptive statistic for
measuring dispersion?
The standard deviation is
If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will have a z score (or standard score) of
The power of a statistical test refers to its ability to
reject false null hypotheses.
reject false experimental hypotheses.
reject true null hypotheses.
reject true experimental hypotheses.
Simple analysis of variance is used in designs having
one independent variable
more than one independent variable
more than one independent variable (IV) but less than four IVs
more than one dependent variable
is one way of ensuring that a sample is representative
of the population.
The two-tailed test
The between-subjects design
The sign test Random sampling
If we conduct an experiment on average young, white, college males, inferential statistics allow us to generalize to the population of
average young, white, college males.
college male students.
college students.
young adults.
Which of the following would be considered the most conservative al- pha level?
.01
.05
.10
.15
The prediction that alcohol slows reaction time is
nondirectional. directional.
semidirectional.
partially directional.
powerful than one-tailed tests.
less; less
less; more more; less more; more
The indicates the number of scores that are free to vary.
U
degrees of freedom
magnitude of effect
point biserial
The is used to analyze the results when there are more than two groups.
t-test
z-test
analysis of variance
none of the above
The maintains that two conditions do not differ.
experimental hypothesis
level of confidence
law of effect
null hypothesis
.
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