The Development of Auditory Discrimination in Third-Grade Students by Use of Tape-Recorded Materials Page: 43
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43
one variable was used as the criterion variable with the other
variables used as control variables.
Hypothesis one, there will be no significant difference
in mean change between the experimental and the control groups
as measured by the composite when the several variables are
statistically controlled, was tested using the composite as
the criterion (y) variable. Age (x-^), sex (X2), and intelli-
gence quotient (x^) were the control variables. The sums of
squares, mean squares, and the degrees of freedom for hypothe-
sis one are presented in Table V.
TABLE V
THE SUM OF SQUARES, MEAN SQUARES, AND DEGREES
OF FREEDOM FOR HYPOTHESIS ONE
Source of
Variation
Degrees of
Freedom
Sums of
Squares
Mean
Squares
Total
Within Subgroups
Difference
229
228
1
872.3640
664.7125
207.6515
2.9154
207.6515
1,228
- 2°7 6515 - 71.2257
2.9154
With 1 and 228 degrees of freedom, F^ = 6.76. The F
obtained exceeds the F^ value. Therefore the hypothesis
was rejected.
*
James Wert, Charles Neidt and Stanley Ahmann, Statisti-
cal Methods in Educational and Psychological Research (New
York, 1954), p.~347: '
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Evans, Jackie Merion, 1932-. The Development of Auditory Discrimination in Third-Grade Students by Use of Tape-Recorded Materials, dissertation, August 1965; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc164208/m1/50/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .