Factorial design
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group research design which analyzes the effect of more than one
independent variable (factors) on a dependent variable
Nominal
(measurement scale)
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-a category is present (e.g., hypernasality) or absent (normal nasality)
-classified into named groupings/no numeric relationship to one another
- Example: gender, name, disorders; "never", "sometimes", "always"
,Hawthorne Effect
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the extent to which a study's results are affected by participants'
knowledge that they are taking part in an experiment or that they are being
treated differently than usual
null hypotheses
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zero; states that two variables are not related
Interval scale
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-numerical scale that can be arranged according to rank orders or
levels/equal intervals
Ex: Scaled scores on language test, IQ scores.
Longitudinal studies: Randomized Control Design
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, This is like the cross over design where one gets treatment and the other
doesn't. But in this one the two groups are randomized.
Class 2 Evidence
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refers to data obtained from nonrandomized trials or case studies. The lack
of randomization limits reliability of the data from this class.
alternate-form reliability
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(parallel form reliability) the consistency of measures when two parallel
forms (test A, test B) of the same test are administered to the same people
Longitudinal studies: Single Blind Study
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Give this one a try later!
group research design which analyzes the effect of more than one
independent variable (factors) on a dependent variable
Nominal
(measurement scale)
Give this one a try later!
-a category is present (e.g., hypernasality) or absent (normal nasality)
-classified into named groupings/no numeric relationship to one another
- Example: gender, name, disorders; "never", "sometimes", "always"
,Hawthorne Effect
Give this one a try later!
the extent to which a study's results are affected by participants'
knowledge that they are taking part in an experiment or that they are being
treated differently than usual
null hypotheses
Give this one a try later!
zero; states that two variables are not related
Interval scale
Give this one a try later!
-numerical scale that can be arranged according to rank orders or
levels/equal intervals
Ex: Scaled scores on language test, IQ scores.
Longitudinal studies: Randomized Control Design
Give this one a try later!
, This is like the cross over design where one gets treatment and the other
doesn't. But in this one the two groups are randomized.
Class 2 Evidence
Give this one a try later!
refers to data obtained from nonrandomized trials or case studies. The lack
of randomization limits reliability of the data from this class.
alternate-form reliability
Give this one a try later!
(parallel form reliability) the consistency of measures when two parallel
forms (test A, test B) of the same test are administered to the same people
Longitudinal studies: Single Blind Study
Give this one a try later!
