A Developmental Psychologist Developed a Training Program to Encourage Children

Multiple Choice

A developmental psychologist developed a training program to encourage children to reduce their Internet usage.To examine its efficacy he recruited a sample of 120 children - of whom 60 were aged 11 years and 60 were aged 13.Half of the participants were randomly assigned to the training program and the amount of online usage was measured after one month.Findings were subjected to two-way ANOVA, from which the output was as follows: Which of the following statements is false?

A) The assumption of equal variances should be tested for a Hawthorne effect.
B) The interaction effect is significant with p = .003.
C) The effect of intercept can be removed by truncating the range.
D) The results cannot be interpreted because the corrected total is much smaller than the total.
E) All of the above.