The following research questions can be answered using 1 ofthe 5 tests you have learned so far: single-sample t-test, paired-samples t-test,independent-samples t-test, one-wayANOVA, or two-way ANOVA. Use the information in the tables to construct yourSPSS data file, just as you have been doing in Part 2 of each homeworkassignment. There is only 1 correctchoice of analysis for each question. The assessment is open-book/open-notes.For each problem involving a test of significance, youranswer must include: A) the output andan appropriate graph from SPSS; B) astatistical statement (i.e., t(19) = 1.79, p = .049); and C) a sentence summarizing the results (i.e., “There was asignificant difference between the two groups on the variable…” or “There wasno significant difference…”).For ANOVA problems:Report statistical findings and make statements for all main effects andinteraction effects. Use the Fisher LSD test for any analyses requiring posthoc tests.Submit this assignment by 11:59 p.m. (ET) on Monday ofModule/Week 5.1. Anentrepreneur claims that he has developed a program that can increase the IQ ofadolescent students. To test this claim, a psychologist administers the WISC(an IQ score for children) to a group of students before and after completingthe training program. Analyze the data to test the entrepreneur’s claim. (16pts)StudentIQ beforeIQ after123456789101112131415161718103859410674988393103961091158612211212611872998990108749980991079311111783122120131116742. Thestaff at a local psychiatric facility wants to determine whether implementing aNo Smoking rule significantly decreases the length of stay of inpatients. Inorder to test this claim, they compared the length of stay of patients admittedbefore a No Smoking rule was implemented to another group of patients admitted afterthe No Smoking rule was implemented. Evaluate the claim that the average lengthof stay was significantly shorter for the group admitted after the facility implementedthe rule. (16 pts)Smoking AllowedNo Smoking852586414715128413108510782324484524673. Depressedpatients are randomly assigned to 1 of 3 therapists. At the end of 3 months,each patient completes a standardized test of depression (higher scoresindicate higher level of depression). The patients’ scores are shown below. Analyzethe data to determine how effective these 3 therapists are at treatingdepression (assume that before the treatment, all 3 groups of patients had thesame average depression score). (16 pts)Therapist 1Therapist 2Therapist 33537353736333936373731393532293225283330324. Inlight of all the weight loss misinformation and fad diets, a medical researcherdetermines to evaluate several of them. She randomly assigns volunteers (identifiedas clinically obese) to 1 of 4 diets. She is a firm believer in the benefits ofexercise, so she also assigns them to either the exercise or no exercise group.After 3 months, she compares the pounds lost for each condition. Was there asignificant effect of the diets and exercise on weight loss? (16 pts)ExerciseLow CarbSouth BeachAdkinsWeightWatchers2628302520282218252124292828302526No Exercise152018181215151719282521342530285. Infantsexposed to cocaine in their mother’s womb are thought to be at high risk formajor birth defects. Thirteen infants born to mothers who are addicted tococaine are administered the Brazelton Neonatal Assessment 1 day after birth.For these babies, their scores were as follows:Brazelton Scores6.254.508.505.503.007.907.505.306.807.505.257.456.80For the general population, babies normally score an8.5. Is this group of babies significantly lower than normal?
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