When using the independent-samples t-test or the Mann–Whitney U test the null hypothesis depicts which of the following outcome?
a. That the difference between the two sampled populations is equal to zero.
b. The standard deviations of the two sampled populations are equal.
c. That the difference between the two sampled populations is not equal to zero.
d. The variances of the sampled populations are not equal.
Ans: A
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Which of the following movements grew out of a need to focus on teacher roles, student roles, and cognition?
a. traditional subject area disciplines b. back-to-basics c. child-centered d. social reform
Research indicates that students with learning disabilities are ineffective at employing memory strategies. Therefore, it is not only important to teach students to use memory strategies, but also to cue them to ________.
A. remain on task B. go back to the text and reread the information C. take clear and concise notes D. use the memory strategies they have learned
Based on the following output, which item on this questionnaire would most improve the reliability of the questionnaire if it were removed?
R E L I A B I L I T Y A N A L Y S I S - S C A L E (A L P H A) Item-total Statistics Scale Scale Corrected Mean Variance Item- Alpha if Item if Item Total if Item Deleted Deleted Correlation Deleted Q1 54.1282 166.2200 .5505 .9082 Q2 54.5641 165.0418 .4917 .9092 Q3 56.0256 159.4467 .5719 .9072 Q4 54.6667 158.5439 .6972 .9039 Q5 55.0769 159.9676 .6225 .9058 Q6 54.9744 158.3414 .6422 .9052 Q7 54.6667 160.1228 .6374 .9055 Q8 54.5385 159.9393 .6314 .9056 Q9 55.1538 152.5020 .6596 .9048 Q10 55.6154 160.0850 .5321 .9084 Q12 56.0256 170.8151 .2423 .9156 Q14 54.3846 164.1377 .5508 .9078 Q16 54.9487 163.4710 .4447 .9108 Q17 55.0769 155.3887 .6760 .9041 Q18 55.5897 157.1430 .6421 .9051 Q19 56.0513 165.3131 .5756 .9076 Q20 55.0769 163.0729 .4870 .9095 Q21 55.1026 152.9892 .7586 .9015 Reliability Coefficients N of Cases = 39.0 N of Items = 18 Alpha = .9118 A. Q12. B. Q16. C. Q21. D. Q4.
Identify two problems and describe them.
a, Write a research topic for each of the problems described. b. State the Dependent and Independent Variable. c. State one directional, Non- directional, null hypothesis. d. State two Research Objectives.