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TABLE 14-15
The superintendent of a school district wanted to predict the percentage of students passing a sixth-grade proficiency test. She obtained the data on percentage of students passing the proficiency test (% Passing), daily mean of the percentage of students attending class (% Attendance), mean teacher salary in dollars (Salaries), and instructional spending per pupil in dollars (Spending) of 47 schools in the state.
Following is the multiple regression output with Y = % Passing as the dependent variable, X₁ = % Attendance, X₂= Salaries and X₃= Spending:
-Referring to Table 14-15, you can conclude that average teacher salary individually has no impact on the mean percentage of students passing the proficiency test, taking into account the effect of all the other independent variables, at a 10% level of significance based solely on the 95% confidence interval estimate for β₂.
Naturalistic Observation Method
A research strategy where behaviors are observed and recorded in their natural environment without manipulation or interference.
Experimental Method
A scientific approach to research in which the researcher manipulates one or more variables to determine their effect on a certain outcome.
Correlational Method
A research technique used to measure the relationship between two or more variables, determining how they may predict or relate to one another without inferring causality.
Psychometric Approach
A method in psychology that focuses on the design, administration, and interpretation of quantitative tests for the measurement of psychological variables such as intelligence, personality traits, and abilities.
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