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DEFINITION OF TERMS

Abstract - A resume of the research or thesis, which presents a non-critical
and informative digest of the significant highlights of the report.

Accuracy - The nearness of an obtained value to the true value of the measure.

Alternative Hypotheses - Opposite of the null hypothesis. Statement of
objective, which the experimenter wishes to attain on certain problems. A
kind of hypothesis, which predicts the presence of relationship between
or among variables.

Analysis of Variance - A statistical technique for testing the difference between
two or more

Treatment means. A statistical technique, which identifies and provides
measures for the various sources of variation in the experiment.
Average - A value, which is typical or representative of a set of central data.
Since, such typical values tend to lie centrally within the set of data
arranged according to magnitude, averages are also called measure of
tendency.

Block - A physical unit containing one complete replication of a treatment.

Blocking – A process of stratifying experimental materials into homogeneous
groups to reduce experimental error in the experiment. A group of
stratified materials where a complete set of experimental treatments
applied is called block.
Buffer - A space between two-treated experimental units.

Census - A procedure of gathering data from a population.

Central Tendency – A single value, which represents the clustering of scores
towards the center of the distribution; this measure may be the mean,
median or mode.

Class Frequency - The number of individuals of values belonging to each class
or category

Class Interval - The range of given class or category in frequency table.

Class Mark - Is the midpoint of the class interval and is obtained by adding
the lower and upper class limits and dividing by two.

Class Width - The difference between the lower and upper class boundaries.
Classes (or categories) - Refer to the individual division of a large mass of
data.

Coefficient of Variation – The ratio of the standard deviation of the sample to
the mean of the sample expresses in percentage.