Test Type
This type of statistics summarizes and describes a set of data. Also measures a central tendency and dispersion.
What are descriptive statistics?
This p value is what we want for our research.
What is less than .05?
This type of design tests a claim about a variable by exposing people to the variable of interest and noting that these people feel, think, or behave as expected.
What is a pseudo-experimental design?
This type of bias occurs when we sample people from an unrepresentative sample by using imperfect sampling techniques.
What is selection bias?
This design is data collected from two presumably comparable groups of participants, before and after one group receives a manipulation.
What is pretest-posttest design?
This type of statistics determines what to include from data.
What are referential statistics?
This type of error occurs when we incorrectly reject the null hypothesis.
What is a Type I error?
These two functions are what a good design performs.
What is (1) enables us to pinpoint effects of the IV on the DV, and (2) helps us rule out confounds?
This threat to validity interferes with the ability to determine influence of the IV on the DV.
What is threat to internal validity?
What is testing effects?
This is the type of test we should use if we have one IV, two levels, and one continuous DV.
What is a t-test?
What is a type II error?
These 3 things are threats to internal validity.
What is history (aka people change), maturation, and regression to the mean?
This type of threat interferes with the ability to determine applicability of findings to real world people and places.
What is threat to external validity?
This type of bias is that people who choose to answer surveys systematically differ from people who choose not to do so.
What is nonresponse bias?
This is the type of test we should use if we have two+ IVs, more than two levels, and one continuous DV.
What is a factorial ANOVA?
This type of error often occurs when we have a small sample size, the effect is small, and the alpha level is set very low.
What is Type II error?
This effect increases in productivity when workers think they are being studied.
What is the Hawthorne Effect?
What is the mere measurement effect?
This type of attrition is when attrition rates are noticeably different in two or more conditions. Also erases normal benefits of random assignment.
What is heterogenous attrition?
What type of test should we use if we have one or more continuous IVs and one continuous DV.
What is regression?
This is the correct order of a scientific paper.
What is abstract, introduction, methods, results, discussion, and references?
These 3 things are the fixes for testing effects.
What is (1) true experiment with pre-tested control group, (2) eliminate the pretest, and (3) wait as long as possible to administer posttests?
These are ways to fix attrition.
What is (1) carefully considering procedures and materials and (2) doing everything within reason to keep people from dropping out (information and enthusiasm, inoculation, breaks, and increase incentive)?
This formula causes extreme scores to become less extreme the second time around?
Chance -->
chance + stable property = score