What does the symbol p represent in the following: t(42) = 5.15, p < .01?
a. test statistic
b. t value
c. degrees of freedom
d. probability
Ans: d
You might also like to view...
IDEIA uses the term hearing impairment to denote individuals with hearing loss
Indicate whether the statement is true or false
List two things about the kitchen space that could affect meal planning and preparation
What will be an ideal response?
In a study investigating the effects of a social skills training program, pretest and posttest scores were obtained from 30 students diagnosed as behaviorally handicapped. Which statistical test should the researcher use to test the null hypothesis that there is no difference between the pretest and posttest scores?
a) Chi-square test of independence b) Independent samples t-test c) Dependent t-test d) Two-way analysis of variance
A sports scientist conducted an analysis of the relationship between consumption of energy drinks (measured in units consumed daily) and athlete performance in a physical test (measured by test score). He had found that there was a positive relationship between the predictor and the outcome variable. However when he introduced the variable consumption of protein (measured in daily calories obtained from protein) he found that the strength of the original relationship weakened. How might he now summarise the relationship between energy drinks and physical performance?
A. It has an indirect effect mediated by protein intake B. It has a direct effect mediated by protein intake C. It has no effect at all D. It has no significant relationship.