WorksheetsPSYCH 290: Exam #2
Total questions: 26
Worksheet time: 16mins
Archival research involves carefully examining what has already happened in the past
True
False
Which of the following are ways to reduce observer bias (check all that apply)
behavior checklists and good operational definitions
examining inter-rater reliability for many observers
measuring for type I and type II errors
reducing observer burden
An example of time sampling is sampling a certain behavior
Every time a new customer enters a store
Whenever you see someone wearing a red shirt
The first 60 seconds of every 30 minute interval
Every time you see a different color car
You collect data on sunburns and ice cream consumption. You find that higher ice cream consumption is associated with a higher probability of sunburn. The confounding variable that explains these findings is:
Ice cream
Likelihood of getting a sunburn
Hot temperatures
Going Outside too much
Which of the following are example of a close-ended question:
In your opinion what is the biggest issues faced by Americans today?
Humans are mammals:
a. true
b. false
Do you think that Aliens exist? Explain.
What is the better color:
a. red
b. yellow
c. purple
How do researchers create equivalent groups?
Cluster assignment and systemic assignment
Both random assignmnet and mathcing + random assignment
systemic sampling and random sampling
matching and cluster sampling
An example of Random assignment is
Separating participants into groups based on hair color
Moving participants into groups based on height.
Flipping a coin each time a participant volunteers in order to place them into a group
Putting particpants into groups based on when they volunteer
Is the following an example of matching:
You want to evenly distribute those with brown eyes and those with colored eyes. You decide to pair one person with brown eyes and one person with colored eyes and you do this with all of your participants.
Once you do this you randomly assign one of each pair to groups 1 and 2
yes
no
The Difference between "between-subjects" and "within subjects" is that
between subjects contrasts IV between groups while within subjects contrasts within the same group
Within subjects contrasts IV between groups between subjects contrasts within the same group
All the definitions are in correct
The threat to internal validity HISTORY is
An individuals scores may change over time due to maturing with age
a problem when taking a pretest can influence the posttest
when an event may happen between assessments that produces large changes
a problem when the pretest and posttest differ
Attrition is when
subjects refuse to join a study
subjects leave a study
subjects leave a study for a short period of time
None of the above
A researcher gets better at administering the test or changes instructions is an example of
(a)
Cohort effects are when participants differ not only in age but also in
culture
fluency in multiple languages
family size
enviormental experience
A study has 3 conditions, and all 6 possible sequences of conditions are used. This is an example of
Reverse counterbalancing
Complete counterbalancing
Partial counterbalancing
Block randomization
What is the following demonstrating
Group 1: A – B – C - C – B – A
Group 2: C – B – A - A – B - C
Reverse counterbalancing
Partial counterbalancing
Complete counterbalancing
Block randomization
_________ has TWO methods of possible sequential conditions to be used.
1. A Latin Square
2. Randomly sampling from all possible orders
ABC ACB BCA BAC CAB CBA
Reverse counterbalancing
Complete counterbalancing
Block randomization
Partial counterbalancing
Block randomization
means all possible sequences of conditions are used
the conditions in random order within a block (one time) and this procedure is repeated a number of times
means some possible sequences of conditions are used
presents the conditions in one order and then again in the opposite order
Direct unobtrusive measures record events/outcomes that are assumed to have resulted from a certain behavior
Indirect unobtrusive behaviors help directly witness behavior
True
False
What does a correlation assess for a group of data?
strength and direction
direction and frecuency
strength and range
none of the above
what is the (r) correlation coefficient and the (p) p-value for the following correlation matrix
r = -.245
p-value = .559
r = 8
p-value = 1
r = .559
p-value = -.245
r = 8.33
p-value = 1.88
What is a regression equation used for? (check all that apply)
finding out the slops of different sets of data
finding out if there is a relationship between sets of data
finding out the mean, median, and mode of different sets of data
none of the above
For the Coefficients section what is the intercept and b-value
intercept: -12.878
b-value: 1.193
intercept: 9.779
b-value: .145
intercept: 1.193
b-value: -12.878
intercept: .145
b-value: 9.779
What is the p-value for this analysis
.196
.145
1.193
9.779
Is the regression significant?
yes
not sure
no
A driver, drives the speed limit on the highway once they realize that a cop is behind them.
The above situation is closest to demonstrating
Demand characteristics.
Evaluation Apprehension
The good subject effect
The Hawthorne Effect
Does the following image depict a Likert scale?
yes
no
