Prof vutha exam
Psychology Data Analysis Quiz
Test your understanding of data analysis and research methods in psychology with our comprehensive quiz. With 72 thought-provoking questions, you'll dive into key concepts, statistical methods, and best practices for collecting and analyzing data.
Challenge yourself with questions covering:
- Sampling techniques
- Statistical methods
- Types of variables
- Research design
In order to save time and money, psychologists collect their data by ?
The use of censuses
The use of prevalence
Using poorly paid student helpers
Stopping people in the street
The use of samples
The specific statistical methods that can be used to summarize or to do collection of data is called ?
Analytical statistics
Experimental study
Descriptive statistics
All of the above
Inferential statistics
Non-sampling errors are introduced due to technically faulty observe during the......of data.
Processing
Sequencing
Collection
Analysis
Interview
Data is simple the numerical results of any scientific...........
Observation
Collection
Analysis
Researches
Measurement
The.........process would be required to ensure that the data is and as required.
Editing
Tabulating
Analysis
Ordering
All of the above
A sample is a portion of the.........population the is considered for study and analysis.
Fixed
Random
Selected
Total
Distribution
Both the sampling as well as the non-sampling errors must be reduced to a minimum in order to get representative a sample of the..........as possible.
Population
Group
Universe
Region
Ethics
A variable is any characteristic which can assume.................value.
Fixed
Different
Assumed
Similar
Good
The basic objective of a sample is to draw...............about the population from which such sample is drawn.
Parameters
Conclusion
Inferences
Characteristic
Introduction
In...............type of classification, the data is group together according to some distinguished characteristic or attribute, such as religion, sex, age, national origin, and so on.
Chronological
Quantitative
Qualitative
All of the above
All are not correct
What is the defining characteristic of experimental research?
Resistance to manipulation
Manipulation of the independent variable
The use of open-ended question
Focuses only on local problems
All are not correct
What of the following includes examples of quantitative variable?
Age, temperature, income, height
Grade point average, anxiety level
Gender, religion, ethnic group
Bothe a and b
All are not correct
Which of the following can best be described as a categorical variable?
Age
Grade point average
Annual income
Religion
Nationality
What is the opposite of a variable?
A constant
Ann extraneous variable
A dependent variable
A data set
All of the above
The strongest evidence for causality comes from which of the following research method?
Ethnography
Experimental
Causal-comparative
Correlational
All of the above
A numerical value used as a summary measure for a sample, such as sample mean known as a
Population parameter
Sample parameter
Sample statistic
Population mean
None of the above answers is correct
Since the population size is always larger than the sample size, than the sample statistic
Can never be larger than the population parameter
Can never be equal to the population parameter
Can never be zero
Can never be smaller than the population parameter
None of the above answers is correct.
The mean of a sample is
Always equal to the mean of the population
Always smaller than the mean of the population
Computed by summing the data values and dividing the sum by (n-1)
Computed by summing the data values and dividing the sum by the number of items
None of the above answer is correct
Mu is an example of a:
Population parameter
Sample statistic
Population variance
Mode
None of the above answers is correct
The sum of the percent frequencies for all classes will always equal
One
The number of classes
The number of items in the study
100
None of the above answers is correct
In a five number summary, which of the following is not used for data summarization?
The smallest value
The largest value
The median
The 25th percentile
The mean
Since the mode is the most frequently occurring data value, it
Can never be larger than the mean
Is always larger than the median
Is always larger than the mean
Must have a value of at least two
None of the above answer is correct
The mean of sample is
Always equal to the mean of the population
Always smaller than the mean of the population
Computed by summing the data values and dividing the sum by (n-1)
Computed by summing all the data values and dividing the sum by the number of items
None of the above answers is correct.
The difference between the largest and the smallest data values is the
Variance
Interquartile range
Range
Coefficient of variation
None of the above answers is correct.
Which of the following is not measure of central location?
Mean
Median
Variance
Mode
None of the above answers is correct
If a data set has an even number of observation, the median
Cannot be determined
Is the average value of the two middle items
Must be equal to the mean
Is the average value of the two middle items when all Items are arranged in ascending order
None of the answers is correct
The sum of deviation of the individual data elements from their mean is
Always greater than zero
Always less than zero
Sometimes greater than and sometimes less than zero, depending on the data elements
Always equal to zero
None of the answers is correct
The value the has half of the observation above it and half the observation below it is called the
Range
Median
Mean
Mode
None of the above answers is correct.
The most frequently occurring value of a data set is called the
Range
Mode
Mean
Median
None of the above answers is correct.
A tabular summary of a set of data showing the fraction of the total number of items in several classes is a
Frequency distribution
Relative frequency distribution
Frequency
Cumulative frequency distribution
None of the above answers is correct.
The standard deviation of a sample of 100 observation equals 64. The variance of the sample equals
8
10
6,400
4,096
None of the above answers is correct.
The variance of a sample of 81 observation equal 64. The standard deviation of the sample equals
0
4096
8
6,561
All are not correct
Refer to Exhibit 3-2. The median is
5
6
7
8
All are not correct
Refer to Exhibit 3-2. The mode is
5
6
7
8
All are not correct
Refer to Exhibit 3-2. The mean is
5
6
7
8
All are not correct
Refer to Exhibit 3-3. The range is
1
2
10
12
All are not correct
Refer to Exhibit 3-4. The mean is
35
670
10
67
All are not correct
Which of the following is not a measure of dispersion?
The range
The variance
The standard deviation
A+b+c
None of the above answers is correct.
The measure of dispersion that is influence most by extreme values is
The variance
The standard deviation
The range
The interquartile range
None of the above answers is correct.
When should measures of location and dispersion are computed from grouped data rather from indication data values?
As much as possible since computation are easier
Only when individual data values are unavailable
Whenever computer packages for descriptive statistics are unavailable
Only when the data from a population
None of the above answers is correct
the description measure of dispersion that is based on the concept of a deviation about the mean?
The range
The interquartile range
Both a and b
The standard deviation
None of the above answers is correct
on matter academics (knowledge) a researcher should consider himself as
Entirely dependent on the teacher
Open minded and radical
Fairly knowledge
A status quo maintainer
None of the above answers is correct
giver the N values in a series, the geometric mean is
The third root of the product of N values
The square root of the product of N values
The fourth root of the product of N values
The NTH root of the product of N values
None of the above answers is correct
Which of the measure given have are based on every item of the series?
Range
Standard deviation
Quartile deviation
Mean
All of them
A research select a probability sample of 100 out of the total population. It is
A cluster sample
A random sample
A systematics sample
A stratified sample
A multistage sampling
If X is 4 and the distribution is 2, 3, 4, 5, 6 the sum of squared deviations from the X will be:
8
10
6
12
14
Generalized conclusion on the basic of a sample is technically known as
Statistical inference of external validity of the research
Parameter inference
Data analysis and interpretation
All of the above
All are not correct
A statistical measure beads upon entire population is called para meter while measure bused upon a sample is know as
Sample parameter
Inference
Standard deviation
Statistic
None of them
if X is 48, median is 47, mode value will be
44
50
45
49
60
a numerical value used as summery measure for a sample , such as sample mean, is know as a
Population parameter
Sample parameter
Sample statistic
Population mean
None of the above answers is correct
Since the population size is always larger than the sample size, them the sample statistic
Can never be larger than the population parameter
Can never be equal than the population parameter
Can never be zero
Can never be smaller than the population parameter
None of the above answers is correct
& #61549, is an example of a
Population parameter
Sample statistic
Population variance
Mode
None of the above answers is correct
The mean of a sample is
Always equal to the mean of the population
Always smaller to the mean of the population
Computed by summery the data values and dividing the sum by the (n-1)
Computed by summery the data values and dividing the sum by the number of item
None of the above answer is correct
The stages of a malignant disease (cancer) is recorded using the symbols 0,I,II,III,IV. We say that
Alphanumeric
Numerical
Ordinal
Nominal
Category
The fundamental statistical indicators are
Mean and D. Standard deviation
Median
Variance
Mode
Range
If the average of a series of values is 10 and their variance is 4, then the coefficient of variation (=the ratio standard deviation/average) is
40%
20%
80%
10%
90%
The median of a series of numerical values is
Equal to the average
A graph or hart
A number
A frequency table
A distribution table
The median of a series of numerical values is
A value for which half of the values are higher and half of the values are lower
The values located exactly midway between the minimum and maximum of the series
The most commonly encounter values among the series
A measure of the eccentricity of the series
A measure of central tendency
Relative risk
Shows the relationship between a factor assumed to influence the occurrence of disease,and the disease
Is the ratio of the risk of those for exposed and those not exposed to that risk factor
Cannot be greater than 1
Is expressed as a percentage
Is proportion
If on a group of 457 patients ,for a risk factor we calculated a Relative Risk RR=12.74, thepossiblity of developing the disease being investigated is
Very high when exposed to the factor
Very small when exposed to the factor
The same in the case of exposure in the case of non-exposure
Lower in the exposed than in the unexposed, RR being less than 100
Equal in the exposed
the result of a statistical test, denoted p, shall be interpreted as follow
The null hypothesis HO is rejected if p<0.05
The null hypothesis HO is rejected if p>0.05
The alternate hypothesis H1 is rejected if p>0.05
The null hypothesis HO is accepted if p<0.05
None of the above answers is correct
if, after performing a Student test for comparison of means, we obtain p=0.0256, then
We reject HO and accept H1
We accept HO
We reject H1
We cannot decide
We can decide
Fluoridation of community water is an example of
Personal autonomy
Public health legal powers/coercion
The community good superseding individual human rights
A and B above
B and C above
Which of the following are goal of vaccination?
Prevent infection
Prevent disease
Prevent transmission
All of the above
A and B above
A “benefit” of research may accrue
To the participant
To his/her family
To society
All of the above
A and B above
The most important element of ethical research on human subject is
Beneficence
Justice
A methodologically sound study design
Informed consent
All are correct
Surveillance data must be
Rapidly collected
Use simple definitions
Provide very precise estimate
All of the above
A and B above
The requirements for an effective surveillance system include
A diagnostic algorithm
Staff members
A sampling frame
All of the above
None
A good surveillance system should provide information about
Who is being infected
Where the infected individual are
How rapidly infection is spreading
All of the above
A and C above
Most surveillance system use which of the following study design?
Cohort
Serial cross-sectional
Mortality
Syndromic
A and C above
Result of surveillance should be distributed to
Decision makers
The public
The data collectors
All of above
A and B above
The most important goal of a behavioral intervention is
Change in behavior
Comprehensive coverage
Effective use of behavioral theory
Sustained behavior change
Change in belief
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