Hypothesis testing
The conventional alpha level used in hypothesis testing.
What is .05?
This type of correlation occurs when the two variables' scores are moving in the opposite direction.
What is a negative correlation?
This is the variable that is measured in an experimental design.
What is the dependent variable?
This type of validity is the control that is needed in an experimental design.
What is internal validity?
An experimental design with more than one independent variable is known as this type of design.
What is a factorial design?
This error is when you say you have a significant result when you actually do not.
What is a Type I error?
This happens when two variables are correlated one way for lower scores and another way for higher scores.
What is a curvilinear relationship?
A three-way design has this many independent variables.
What are three?
Using a matched group design helps to ensure this.
What is control extraneous variables (i.e., ensure that levels of a related variable would be distributed equally across all conditions of a between-subjects design)?
This is the number of conditions in a 2 x 2 x 2 design.
What are eight?
This is the null hypothesis for correlational designs.
What is r = 0?
This type of plot is used to visualize a correlation.
What is a scatterplot?
Participants who are randomly assigned to conditions of a study are in this type of experimental design.
What is between-subjects?
This is used to ensure that participants noticed a manipulation in an experimental study.
What is a manipulation check?
The number of independent variables in a 2 x 3 design.
What are two?
This type of error occurs when you don't say you have a significant finding but you actually do.
What is a Type II error?
A correlation conveys these two important pieces of information about the relationship it depicts.
What are strength and direction?
This is the statistic that would be used to analyze data if you have more than one independent variable in an experimental design.
What is ANOVA?
This type of study replication occurs when you redo a study using the same hypothesis but different variables.
What is a conceptual replication?
This is what you need to do to determine the direction of significant experimental study results.
What is examine the means?
This is defined as when the mean of one condition is "equal" to the mean of another condition.
What is the null hypothesis for experimental designs?
When a variable in a correlation shows little variation in the scores, this has happened.
What is a restriction of range?
This is an advantage to using a within-subjects or repeated measures design.
What is fewer participants, less time, or less error?
This is one good way to standardize conditions in an experiment.
What is use scripts?
Studies with two independent variables will result in this many main effects and/or interactions.
What are two main effects and one interaction?