A study comparing the effects of two treatments used two groups of students which yielded two means—one for each group. Which statistical test should the researcher use to compare these two means?
a) Chi-square test of independence
b) Dependent samples t-test
c) Independent samples t-test
d) Two-way analysis of variance
c
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The following is an example of which type of case study design: “A researcher is interested in describing how teachers have adapted to a newly adopted state curriculum.”
A. collective case study B. exploratory case study C. intuitive case study D. illustrative case study
The DEC/NAEYC Joint Position Statement was developed through collaboration between the National Association for the Education of Young Children and the Division for Early Childhood, Council for Exceptional Children
Indicate whether the statement is true or false
An experimental researcher usually begins with the null hypothesis of no treatment effect. What does this researcher do when he finds that the probability level is less than the significance level?
a. The null hypothesis is retained and tested one more time before a determination can be made about the effectiveness of the treatment b. The alternative hypothesis (that there is a treatment effect) is said to be true and the null hypothesis is discarded c. The null hypothesis is rejected and the alternative hypothesis (that there is a treatment effect) is tentatively accepted d. The researcher designs another study to prove the null hypothesis
Ashley has been observed several times by her college supervisor. She feels that she needs more frequent visits. What should she do?
A. ask her cooperating teacher to speak to the supervisor about visits B. do nothing and provide negative feedback on the end of the semester evaluation C. collect data from the other student teachers regarding frequency of observations D. speak with the supervisor to request more visits