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WorksheetsFinal Part in the Unit 0 Review
Total questions: 25
Worksheet time: 16mins
Participants are randomly told to either sleep 4 hours or 8 hours before taking a memory test.
Random Assignment
Random Sampling
Researchers randomly select 1,000 high schoolers across the U.S. to survey their sleep habits.
Random Assignment
Random Sampling
Out of all Instagram users aged 13–25, a computer randomly selects 500 participants to study effects on self-esteem.
Random Assignment
Random Sampling
100 people with anxiety are randomly put in groups to attend either cognitive-behavioral therapy or mindfulness-based therapy groups.
Random Assignment
Random Sampling
Half of the kids in a study play a video game where the villain wears red, and half where the villain wears blue to test the influence of color on aggression.
Random Assignment
Random Sampling
A parenting researcher uses a national database to randomly select 250 parents of children under age 10.
Random Assignment
Random Sampling
Which are true of Random Assignment?
Each subject has an equal likelihood of being assigned to a given condition.
The gold standard for controlling potential confounding variables.
Each subject has an equal chance to be included in the sample.
This is when people change due to their belief in something affecting them:
Placebo Effect
Skinner Effect
Maslow Effect
Nature Effect
Which kind of study can establish a cause-effect relationship between variables, assuming that the research is appropriate and well conceived?
survey
case study
correlational study
experiment
The ___________is expected to change as the IV changes.
IV
DV
Controls
Samples
Mean equals
(a)
Range equals (a)
Match the following terms in experimental research.
Abbreviations used:
cond - condition; indep - independent; var - variable
Indepedent variable
cond being tested;
ex: watch violence
Dependent variable
result of test;
ex: behaving violently
Control
group w/o indep var;
watch non-violent
Research finds that, in general, the higher an incoming college student scores on a given test, the higher the student's college GPA. Which of the following best describes this relationship?
A bimodal distribution
A normal distribution
A skewed distribution
A positive correlation
A negative correlation
What is the most used number in a data set?
mean
median
mode
maximum
Random sampling minimizes bias and skewness.
True
False
Identify the type of relationship between weight and price.
The price is never 0 on the graph
As weight increases, price increases
There is a negative linear correlation between weight and price
The price gets high at the end of the graph
Correlational coefficient...
r = -0.90
r = +0.50
r = 0.00
What kind of relationship?
Positive Correlation
Negative Correlation
No Relationship
