A relationship with a correlation of .50

might not be substantively significant

In reference to sampling error, which of the following is true?

sampling error is an inverse function of sample size

When a finding is statistically significant:

its meaning depends on the rigor of the research methods

A .05 level of significance means that

There's only a 5% chance the statistic's value is due to chance

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Chapter 22: Inferential Statistics

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Answers

1
a method for drawing conclusions from different studies on the same topic is called a super-analysis
False
True
2
Two-tailed tests of significance should be used whenever there is a non-directional hypothesis
False
True
3
Statistical power analysis deals with the probability of avoiding Type I errors
False
True
4
A relationship with a correlation of .50
might not be substantively significant
has more substantive significance than relationships with lower correlation
is stronger than any relationship with a coefficient of -.50
shows that 50% of the variation in the independent variable is explained
5
In reference to sampling error, which of the following is true?
sampling error is an inverse function of sample size
the smaller the sample, the less sampling error
random assignment ensures no sampling error
the bigger the sample, the more sampling error
6
Which of the following hypotheses assumes that there is no relationship between two variables
null
Secondary
alternate
research
7
We commit a Type II error when we
reject a false null hypothesis
accept a false null hypothesis
accept a true null hypothesis
accept a true null hypothesis
8
When a finding is statistically significant:
its meaning depends on the rigor of the research methods
it is an important finding
a strong relationship has been observed
alternate explanations besides the independent variable are not possible
9
A .05 level of significance means that
One is 50% certain the sample value is representative of the population
There's only a 5% chance the statistic's value is due to chance
The level of confidence is only 5%
There's only a 5% chance the variables tested are independent
10
Inferential statistics are used primarily for describing samples
False
True

Chapter 22: Inferential Statistics Flashcards | StudBud