Among threats to internal validity, this effect indicates the phenomenon that performance on a measure or a test improve the second time
testing effect
100
Perfect positive correlation is indicated by r=____
+1
100
This is a group that receives a treatment
Experimental group
100
The most common way to control order effect is ______
Counterbalancing
100
Participants drop out unequally in different conditions. This is called___
Attrition
200
In this design, structure is similar to experiments but the conditions and experiences of participants are not under the full control of the researcher.
Quasi-experiment
200
One thing that correlation study cannot reveal while experiments can do is ______
Causality
200
In this type of manipulation, participants are set up to experience manipulation.
Staged manipulation
200
To reduce carryover effect, you put _____ between conditions.
Interval
200
What is your ethnicity? (A-White, B-Black, C-Latino, D other ____)
What kind of survey item is this example?
Partially open-ended item
300
This validity is about generalizability.
External validity
300
This is the straight line that fits most closely to the set of data points.
Regression line
300
This assignment is used to make individual differences between groups entirely by chance.
Random assignment
300
This type of error doesn't exist in within-subjects design.
Between-persons variability
300
You want to have the same proportion of male and females in your between subjects design experiments. So from the sample, you randomly assign males in two groups, and then randomly assign females in two groups. This is the control by _______
matching
400
These are variables that systematically change along with IV and DV and affects the results.
Confounding variables
400
Date points that can be incidental and far from the rest of the data points are called_______
Outliers
400
You are interested in testing people with high self-esteem, so you removed the low self-esteem people from your subjects. This is an example of _________
holding constant.
400
This statistic is used for two group within-subjects design.
Paired-samples t-test
400
For within-subjects design with 3 or more groups, this statistic is used.
One-way within-subject ANOVA
500
This type of experiment has more external validity but low internal validity.
Field experiment
500
R is called ______ correlation.
Pearson
500
This statistical test is used for between subject design.
Two-independent samples of t-test
500
In this type of design, each treatment or group appears equally often in each position, and each treatment or group precedes and follows each treatment or group one time.
Latin square design
500
This design is effective in saving number of participants.