Shared Flashcard Set

Details

Research Methods
Exam 3 - Chapter 7
16
Psychology
Undergraduate 3
03/16/2011

Additional Psychology Flashcards

 


 

Cards

Term
independent groups design
Definition
a between subjects design that uses a manipulated independent variable and has at least 2 groups of participants; subjects are randomly assigned to the groups
Term
matched groups design
Definition
a between subjects design that uses a manipulated independent variable and has at least 2 groups of participants; subjects are matched on some variable assumed to affect the outcome before being randomly assigned to the groups
Term
nonequivalent groups design
Definition
a between subjects design with at least 2 groups of participants that uses a subject variable or that creates groups that are nonequivalent
Term
repeated measures design
Definition
another name for a within subjects design; participants are tested in each of the experimenter's conditions
Term
homogeneity of variance
Definition
one of the conditions that should be in effect in order to perform parametric inferential tests such as a t test or ANOVA; refers to the fact that variability among all the conditions of a study ought to be similar
Term
t test for independent samples
Definition
an inferential statistical analysis used when comparing 2 samples of data in either a an independent groups design or a nonequivalent groups design
Term
t test for related samples
Definition
an inferential statistical analysis used when comparing 2 samples of data in either a matched groups design or a repeated measures design
Term
single factor multilevel design
Definition
any design with a single independent variable and more than 2 levels of the independent variable
Term
nonlinear effects
Definition
any outcome that does not form a straight line when graphed; can occur only when the independent variable has more than 2 levels
Term
continuous variable
Definition
variable for which an infinite number of values potentially exists
Term
discrete variable
Definition
variable in which each level represents a distinct category that is qualitatively different from another category
Term
ANOVA (Analysis of Variance)
Definition
the most common inferential statistical tool for analyzing the results of experiments when dependent variables are measured on interval or ratio scales
Term
placebo control groups
Definition
control group in which some participants believe they are receiving the experimental treatment but they are not
Term
waiting list control group
Definition
control group in which participants aren't yet receiving treatment but will, eventually, used to ensure that those in the experimental and control groups are similar
Term
yoked control groups
Definition
control group in which the treatment given a member of the control group is matched exactly with the treatment given a member of the experimental group
Term
error bars
Definition
on bar or line graphs, they indicate the amount of variability around a mean; often reflect standard deviations or confidence intervals
Supporting users have an ad free experience!