# Research-aptitude questions set 42

By | January 18, 2017

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## Research aptitude

 Question 1
The most frequently occurring number in a set of values is called the ........
 A Mean B Median C Mode D Range
 Question 2
As a general rule, the ........ is the best measure of central tendency because it is more precise
 A Mean B Median C Mode D Range
 Question 3
Focusing on describing or explaining data versus going beyond immediate data and making inferences is the difference between ........
 A Central tendency and common tendency B Mutually exclusive and mutually exhaustive properties C Descriptive and inferential D Positive skew and negative skew
 Question 4
All of the following are unethical issues, EXCEPT;
 A Invoicing irregularities B Avoiding legal liability C Misrepresenting results D Seeking permission for entry
 Question 5
The use of several measures of a construct is called
 A Multiple Operationalism B Multiple construct measurement C Operationalism D Methods triangulation
 Question 6
A physical or mental change that occurs in participants over time that affects their performance on the dependent variable is called .... .... .... .... .
 A Instrumentation B Maturation C Regression D None of above
 Question 7
Graphically, mode can be estimated from
 A Ogive. B Hysterogram. C Histogram. D Bar diagram.
 Question 8
Which of the following measures of central tendency cannot be represented graphically?
 A Arithmetic mean B Mode C Median D Quartile
 Question 9
Given the N values in a series, the geometric mean is
 A The square root of the product of N. B The third root of the product of N values. C The fourth root of the product of N values. D The Nth root of the product of N values.
 Question 10
Harmonic mean of a series of data is
 A The reciprocal of the arithmetic average of the reciprocals of the values of its various items. B The reciprocal of the arithmetic average of the values of various items. C Always ill-defined. D None of above
 Question 11
Which of the measures given here are based on every item of the series?
 A Range B Standard deviation C Quartile deviation D All of the above .
 Question 12
Which of the measures of dispersion is more useful in case of open-end distributions?
 A Range B Average deviation C Standard deviation D Quartile deviation.
 Question 13
Standard deviation is always computed from
 A Mean. B Mode. C Median. D GM.
 Question 14
Which of the following measures is least affected by extreme items?
 A Quartile deviation. B Range C Standard deviation D Mean deviation.
 Question 15
Which of the following is a computed measure of absolute variation?
 A Range B Standard deviation C Quartile deviation D All of the above .
 Question 16
Attrition generally occurs in research where .... .... .
 A You do demographic research B The study fails C Some participants do not complete the study D The study is very brief
 Question 17
Which of the following is the difference between measures and indicators?
 A Measures are unambiguous quantities, whereas indicators are devised from common sense understandings. B Indicators have a more direct relationship to the underlying concept than measures. C Measures are intuitively devised and then applied as if they were direct indicators of a concept. D Indicators are unambiguous quantities, whereas measures are subjective and value-laden.
 Question 18
The extent to which a test provides scores that are meaningful, appropriate, or useful is referred to as;
 A Reliability B Accuracy C Internal validity D Validity
 Question 19
Which of the following functions is performed by the Ordinal scale?
 A Categorize B Distance C Order D Unique origin
 Question 20
What is the difference between interval/ratio and ordinal variables?
 A Ordinal data can be rank ordered, but interval/ratio data cannot. B The distance between categories is equal across the range of interval/ration data C Interval/ratio variables contain only two categories. D Ordinal variables have a fixed zero point, whereas interval/ratio variables do not.
 Question 21
Which of the following statement refers to cross-sectional design?
 A A comparison of two or more variables over a long period of time B The collection of data from more than one case at one moment in time C One that is devised when the researcher is in a bad mood D A study of one particular section of society, e.g. the middle classes
 Question 22
Why are variance and standard deviation the most popular measures of variability?
 A They are the most stable and are foundations for more advanced statistical analysis B They are the most simple to calculate with large data sets C They provide nominally scaled data D None of the above
 Question 23
........ is the set of procedures used to explain or predict the values of a dependent variable based on the values of one or more independent variables.
 A Regression analysis B Regression coefficient C Regression equation D Regression line
 Question 24
The ........ is the value you calculate when you want the arithmetic average
 A Mean B Median C Mode D All of the above
 Question 25
........ are used when you want to visually examine the relationship between two quantitative variables.
 A Bar graphs B Pie graphs C Line graphs D Scatter plots
There are 25 questions to complete.