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

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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.

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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

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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.

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