NEUR 3001 FINAL EXAM questions with complete
solutions passed
1. What is categorical data? Categorical data is data that can be
stored into groups or categories
-e.g Males vs females, Mendelian
genetics, Mendel's peas (wrinkly vs
smooth peas)
2. What is the formula for chi squared? (observed-expected)^2/expected
3. What is variability? How far apart the data points lie from
each other and from the center of
distribution
4. What is degrees of freedom? Numbers that are free to vary
- N-1
5. What is a dummy variable? A variable we artificially create
ourself and then use for data
analysis
6. What is trimming? Trimming is the automatic removal of
the highest and lowest scores from a
data set before the statistical
analysis
7. What is an alternative hypothesis? It is a proven fact
There is a relationship between the
varibles
8. Statistics The value we calculate from the sample
1/
25
,NEUR 3001 FINAL EXAM questions with complete
solutions passed
9. What is parameter? Value in the population that we are
trying to estimate
10. What is a hypothesis? Tentative statements of the
relationship be- tween two variables
within the population
2/
25
, NEUR 3001 FINAL EXAM questions with complete
solutions passed
11. What is the independent variable? It is the manipulated variable
-e.g age, time
12. What is a dependent variable? It is the measured variable
-e.g test scores (could change
depending on how you studies,
amount of sleep,)
13. What is the difference between a ratio vari- With a ratio scale 0 means 0
able and an interval -counting people in room and you
variable? cant say that there is 0 people in
room
-if you have two people in one room
and
4 people in the other room you can say that
one room has twice as many people
as the other in a ratio scale
14. What is the difference between continuous A continuous variable can take
any number
and discrete variable? of a continuous scale but a discrete can only
take a specific values on a scale
15. What is a between groups design? Ditterent individuals are in ditterent
experi-
mental condition
-e.g a group of rats injected with
cocaine, another group injected with
saline. There are ditterent rats between
each group
3/
25
solutions passed
1. What is categorical data? Categorical data is data that can be
stored into groups or categories
-e.g Males vs females, Mendelian
genetics, Mendel's peas (wrinkly vs
smooth peas)
2. What is the formula for chi squared? (observed-expected)^2/expected
3. What is variability? How far apart the data points lie from
each other and from the center of
distribution
4. What is degrees of freedom? Numbers that are free to vary
- N-1
5. What is a dummy variable? A variable we artificially create
ourself and then use for data
analysis
6. What is trimming? Trimming is the automatic removal of
the highest and lowest scores from a
data set before the statistical
analysis
7. What is an alternative hypothesis? It is a proven fact
There is a relationship between the
varibles
8. Statistics The value we calculate from the sample
1/
25
,NEUR 3001 FINAL EXAM questions with complete
solutions passed
9. What is parameter? Value in the population that we are
trying to estimate
10. What is a hypothesis? Tentative statements of the
relationship be- tween two variables
within the population
2/
25
, NEUR 3001 FINAL EXAM questions with complete
solutions passed
11. What is the independent variable? It is the manipulated variable
-e.g age, time
12. What is a dependent variable? It is the measured variable
-e.g test scores (could change
depending on how you studies,
amount of sleep,)
13. What is the difference between a ratio vari- With a ratio scale 0 means 0
able and an interval -counting people in room and you
variable? cant say that there is 0 people in
room
-if you have two people in one room
and
4 people in the other room you can say that
one room has twice as many people
as the other in a ratio scale
14. What is the difference between continuous A continuous variable can take
any number
and discrete variable? of a continuous scale but a discrete can only
take a specific values on a scale
15. What is a between groups design? Ditterent individuals are in ditterent
experi-
mental condition
-e.g a group of rats injected with
cocaine, another group injected with
saline. There are ditterent rats between
each group
3/
25
