Psyc 210 Otago Questions with CORRECT Answers (Grade A+)
Question 1:
Dependent Variable
Answer:
The way of indirectly measuring the property of interest. e.g. score on an IQ test
Question 2:
Reliability
Answer:
A Dependent Variable is reliable if:
- under the same conditions, it gives the same measure
- contains a minimum of measurement error.
- if measure lacks reliability it also lacks validity.
Question 3:
Causation
Answer:
To show causation we must demonstrate that:
1. changing the first thing produces a change in the second
2. there is no other possible reason for the change in the second thing
,Question 4:
Validity
Answer:
A dependent variable is valid if it measures what it is supposed to.
- a poor operational definition could result in an invalid dependent variable
Question 5:
Operational Definition of your Property of Interest
Answer:
Specification of how the property of interest will be measured. e.g. health = number of trips to the
doctors.
Question 6:
Inferential Statistics
Answer:
Generalise from the sample to the population.
Question 7:
Empirical Approach
Answer:
Testing ideas against actual events.
- observing behaviours and drawing conclusions
, Question 8:
Descriptive Statistics
Answer:
Summarise the data collected from the sample
Question 9:
Bias
Answer:
A biased dependent variable is consistently inaccurate in one direction (i.e. always high or always
low)
Question 10:
Numerical Data
Answer:
Can actively measure and record with a number
Question 11:
Sample
Answer:
A relatively small subset of a population that is selected to represent the population.
- Representative sample achieved by random sampling.
Question 1:
Dependent Variable
Answer:
The way of indirectly measuring the property of interest. e.g. score on an IQ test
Question 2:
Reliability
Answer:
A Dependent Variable is reliable if:
- under the same conditions, it gives the same measure
- contains a minimum of measurement error.
- if measure lacks reliability it also lacks validity.
Question 3:
Causation
Answer:
To show causation we must demonstrate that:
1. changing the first thing produces a change in the second
2. there is no other possible reason for the change in the second thing
,Question 4:
Validity
Answer:
A dependent variable is valid if it measures what it is supposed to.
- a poor operational definition could result in an invalid dependent variable
Question 5:
Operational Definition of your Property of Interest
Answer:
Specification of how the property of interest will be measured. e.g. health = number of trips to the
doctors.
Question 6:
Inferential Statistics
Answer:
Generalise from the sample to the population.
Question 7:
Empirical Approach
Answer:
Testing ideas against actual events.
- observing behaviours and drawing conclusions
, Question 8:
Descriptive Statistics
Answer:
Summarise the data collected from the sample
Question 9:
Bias
Answer:
A biased dependent variable is consistently inaccurate in one direction (i.e. always high or always
low)
Question 10:
Numerical Data
Answer:
Can actively measure and record with a number
Question 11:
Sample
Answer:
A relatively small subset of a population that is selected to represent the population.
- Representative sample achieved by random sampling.
