Research 1st Prelim

Question 1

The science of collecting, organizing, presenting, analyzing, and interpreting data to assist in making more effective decisions

Answer 1

Statistics

Question 2

Gathered by the Researcher

Answer 2

Primary Data

Question 3

Using data of other sources

Answer 3

Secondary Data

Question 4

Complete enumeration in which every member of the population is included

Answer 4

Census

Question 5

Survey of a portion of the population

Answer 5

Sample Survey

Question 6

A sampling method, which makes use of the knowledge of the characteristics of the individual element in the population and thus, the chance that, each element has of being drawn as sample

Answer 6

Probability sampling

Question 7

A sampling method which does not specify the probability of selection of the elements in the population

Answer 7

Non-probability sampling

Question 8

Items which come in handy are taken as samples.

Answer 8

Accidents or haphazard samples

Question 9

Sample is selected with the researcher’s subjective judgment

Answer 9

Judgment or purposive sampling

Question 10

Purposive sampling with the added specification that sample is proportioned to the population

Answer 10

Quota sampling

Question 11

Process of selecting a sample wherein every element in the sampled population is given an equal non–zero chance of entering the sample

Answer 11

Random Sampling

Question 12

Sampling wherein every unit is included after a random start is taken for the sample

Answer 12

Systematic Random Sampling

Question 13

Population is divided into homogenous groups of strata and selection is done within each strata

Answer 13

Stratified Sampling

Question 14

Sampling done in several stages

Answer 14

Multi–Stage Sampling

Question 15

Is a scientific method of dealing with data. It is the collection, organization, presentation and interpretation of numerical data

Answer 15

Descriptive Statistics

Question 16

Involves the interpretation of values resulting from the descriptive techniques

Answer 16

Inferential Statistics

Question 17

Characteristics or phenomenon which may take on different values

Answer 17

Variable

Question 18

Characteristics which assume only one value

Answer 18

Constant

Question 19

Variables which are expressed numerically in terms of magnitude

Answer 19

Quantitative or Numerical Variable

Question 20

Variables expressed in quality or kind

Answer 20

Qualitative or Categorical Variables

Question 21

One which assumes values between two points in a continuous scale

Answer 21

Continuous Variable

Question 22

One which can only assume a finite number of values; Most frequently integers

Answer 22

Discrete Variable

Question 23

A collection of observations

Answer 23

Data

Question 24

Has all the characteristics of the interval scale and in addition has a true zero point.

Answer 24

Ratio scale

Question 25

In the statistical sense, is a measure of central tendency for a collection of values

Answer 25

Average

Question 26

The sum of the values in a data set divided by the number of values

Answer 26

Mean

Question 27

The value of that item which divides an arrayed series into equal parts

Answer 27

Median

Question 28

That item which occurs the most number of items

Answer 28

Mode

Question 29

Means lacking symmetry

Answer 29

Skew

Question 30

Zero skewness

Answer 30

Symmetric Distribution

Question 31

Skewed to the right

Answer 31

Positively skewed distribution

Question 32

Skewed to the left

Answer 32

Negatively skewed distribution

Question 33

Is the degree to which data tend to spread about an average value

Answer 33

Dispersion or Variation

Question 34

Defined as the difference between the largest and smallest sample observations

Answer 34

Range