LAB 8

T tests: What t test should I use and why?

Dr Nomack has developed a new psychotherapeutic treatment for Bipolar disorder; She has coined this Stabilization Talk Time. She believes that persons who undergo this treatment will manifest fewer symptoms of mania and depression than persons who use only lithium. She has treated some clients with this talk therapy. Then she assessed all clients on the Bipolar Assessment Measurement for clinicians.She has accrued the data below and she has given it to you for analysis. .

Group A : This is the group that received talk therapy and meds

77, 78, 76, 75, 87, 90, 76, 72, 90

Group B: This is the group that received only the meds

67, 45, 56, 45, 42, 65, 31, 45, 48

1. For this lab, write your null and alternative hypotheses.
2. Determine which test you will use, identify the reasons WHY. Be sure to justify your choice or you will receive NO credit for this question.
3. Run the analysis and submit your results.Please attach the SPSS data in this lab.
4. Write the results in A P A f o rmat.

Dr Nomack does this research yet again! This time she decides to take subjects on lithium and assess their symptoms before Talk time therapy and again after talk time therapy. Below is the data. Please use this new set of data to complete this part of the Lab.

1. For this lab, write your null and alternative hypotheses.
2. Determine which test you will use, identify the reasons WHY. Be sure to justify your choice or you will receive NO credit for this question.
3. Run the analysis and submit your results.Please attach the SPSS data in this lab.
4. Write the results in A P A format.

Before therapy	After therapy
65	54
64	47
58	38
63	45
66	44
78	43
69	41
82	44
73	49
77	51
69	55
75	56
76	55
71	65
68	46

For help on how to complete this lab, please refer tohttps://libguides.library.kent.edu/SPSS/IndependentTTest

1. ClickAnalyze > Compare Means > Independent-Samples T Test.
2. Move the variableTreatmentto theGrouping Variablefield, and move the variableBipolar severityto theTest Variable(s)area. NowTreatmentis defined as the independent variable andBipolar severityis defined as the dependent variable.
3. ClickDefine Groups, which opens a new window.Use specified valuesis selected by default. Since our grouping variable is numerically coded (0 = Just lithium, 1 = Lithium and talk therapy), type "0" in the first text box, and "1" in the second text box. This indicates that we will compare groups 0 and 1, which correspond to groups respectively. ClickContinuewhen finished.
4. ClickOKto run the Independent SamplestTest. Output for the analysis will display in the Output Viewer window.