Ch. 11: More on Experiments
When the independent variable is found to have no effect on the dependent variable.
What is a null effect?
A 2x3 factorial design contains this many independent variables.
What are two?
These variables resemble true independent variables but cannot be manipulated directly.
What is a quasi-independent variable?
This questionable practice involves developing the hypothesis after examining the results.
What is HARKing?
The two other classes that I taught this semester.
What are Intro to Psychology and Human Sexuality?
When a measurement instrument changes between pretest and protest this threat is present.
What is an instrumentation threat?
This occurs when the effect of one IV depends on the level of another IV.
What is an interaction effect?
A quasi-experimental design that compares a treatment group and comparison group both before and after the IV.
What is a nonequivalent control group pretest/posttest design?
A type of replication that replicates the original study as closely as possible and adds additional levels to the IV.
What is replication-plus-extension?
The name of my master's degree and where I obtained it.
What is M.A. in Psychological Science from CSU Northridge (CSUN)?
How most internal validity threats can be prevented.
What is adding a comparison group?
Variables such as gender, age, or occupation used in factorial designs.
What are participant variables?
This small-N design staggers treatment across different people, behaviors, or settings.
What is a multiple-baseline design?
The tendency for journals to publish only significant results.
What is the file drawer problem?
The one psychology tattoo I have on my right forearm.
What is the chemical symbol for serotonin?
Environmental distractions that can make it difficult to detect true differences between groups.
What is situation noise?
In a 3x2x4 design, this is the maximum number of possible main effects.
What is three? (One for each IV.)
One way to increase external validity in small-N designs.
What is combining multiple small-N designs together?
Examines how well a study's settings, tasks, or manipulations mirror real-world conditions.
What is ecological validity?
My first official job.
What is Hot Dog on a Stick?
The probability of correctly rejecting the null hypothesis, which can be increased by adding more participants.
What is statistical power?
A factorial design that manipulates one IV as an independent-groups design and the other as a within-groups design.
What is a mixed factorial design?
The two ways quasi-experiments differ from true experiments.
What are no random assignment and no manipulation of the IV?
Participants that are not representative of the world population, but are the most sampled in many research studies.
What are westernized, educated, industrialized, rich, and democratic (WEIRD) participants?
My original proposed major at Hartnell College before I decided to major in psychology.
What is business?