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- Multiple ChoicePlease save your changes before editing any questions.
In an example study that uses a between participants design...
every participant ate multiple types of pizza
every participant ate a different type of pizza
some participants ate the same type of pizza
every participant ate the same type of pizza
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"There is a difference in pizzas eaten between those who are hungry and not hungry" This is a:
non-directional null hypothesis
directional experimental hypothesis
directional null hypothesis
non-directional experimental hypothesis
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The null hypothesis tests ...
the probability that there is no difference between groups
systematic variation only
the probability that there is a difference between groups
systematic and unsystematic variation
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The aim of null hypothesis testing is ...
to confirm the null hypothesis
to confirm the experimental hypothesis
to falsify the null hypothesis
to falsify the experimental hypothesis
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We want the p value (probability) to be ...
as small as possible
as large as possible
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A an independent t-test finds a result of p = .038 This result is...
Significant
Non-significant
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Why would we use effect size in addition to p value?
To make things more complicated
To see if the p value is really significant
To get an indication of 'psychological' significance
To test if there is a significant difference between 2 groups