This measures and provides valid and reliable data regarding your clients so you can pick the effective modalities of
tests
A measure of variability or dispersion of scores
Standard Deviation
This type of reliability describes the consistency of two or more raters.
Inter-rater reliability
Is the following a power test or speed test:
Speed test
This group does not receive the experimental Independent
the control group
In this type of design, the same subjects are used for the control condition, and then at a different time for the IV/experimental condition/s
Within groups design, AKA repeated measures or within-subject design
What are the three measures of central tendency?
the mean, the median, and the mode.
This type of reliability describes the extent to which scores on a test will differ from one use to another
the Wechsler and the Binet are examples of what types of tests?
Intelligence tests
This type of hypothesis typically states that there is no significant difference in the things being compared
null hypothesis
This term states that if a client scores exceptionally low or exceptionally high on a test, then the client with the low score will go up on the next administration, while the client with the high score will go down toward the mean or
regression to the mean
What percent of the scores on a normal curve will fall between +/- 2 SD from the mean?
95% of all scores will fall between +/- SD from the mean.
Fill in the following statement using the words "reliable" and "valid" ...... A ____ test is not always ___ but a _____ test is always _______
A reliable test is not always valid, but a valid test is always reliable.
This type of test predicts potential
aptitude test
This is used when you are investigating more than one IV/experimental variable.
Factorial Analysis of Variance
If the subjects know they are being observed, we refer to the process as an ______ measure
obtrusive or a reactive measure
Is a correlation of -.8 stronger or weaker than a correlation of .5?
-.8 is stronger
This type of validity assesses whether the research instrument accurately measures the theoretical concept it's designed to measure.
construct validity
This test tells you if significant differences are present in the data
F test. note: ANOVA (analysis of varience/one-way) provides F values
When a researcher rejects a null hypothesis that is true, it is a ____ error
Type 1 alpha error
If the researcher did not manipulate the variable and you are looking at after the fact data, then the research is not a true experiment but rather an _______
ex post facto, also called causal-comparative design
Label the following sections by percentages
2.14%, 13.59%, 34.13%, 34.13%, 13.59%, 2.14%
This is a type of criterion validity that defines how well a measure correlates with a criterion measured at the same time
concurrent validity
This is the most common nonparametric test
chi-square. This test is used when the population is not necessarily
This is approximately the middle 50% of where the scores fall. It is the 25th-75th percentile, or Q3-Q1 =
Interquartile or IQR