SPSS Cumulative Assessment Instructions

Preview (4 of 13 Pages)

100%

SPSS Cumulative Assessment Instructions - Page 1 preview image

Loading page ...

PSYC 355Page1of13SPSSCumulative Assessment InstructionsThe following research questions can be answered using1of the5tests you have learned so far:single-samplet-test, paired-samplest-test, independent-samplest-test, one-way ANOVA, ortwo-way ANOVA.Use the information in the tables to construct your SPSS data file, just as youhave been doing in Part2of each homework assignment.There is only1correct choice ofanalysis for each question, and note that some tests are 1-tailed and some are 2-tailed.Theassessment is open-book/open-notes.For each problem involving a test of significance, your answermustinclude:A)SPSSoutput;B)an appropriate graphfrom SPSS;C)a Results section in current APA style includinga statisticalstatement(i.e.,t(19) = 1.79, p = .049);a sentence summarizing the results“in English”(i.e.,“There was a significant difference between the two groups on the variable…” or “There was nosignificant difference…”); and a decision about the null hypothesis.For ANOVAproblems:Reportstatisticalfindings and makestatementsfor all main effects andinteraction effects.Use Tukey’stestfor any analyses requiring post hoc tests.Submit this assignment by 11:59 p.m. (ET) on Monday of Module/Week 5.1.Children who experience chronic pain as a result of medical procedures are the focus of apsychiatrist’s study. Specifically, the psychiatrist wants to measure whether a new programhelps decrease feelings of chronic pain in the short-term. He measures children’s self-reportsof pain levels before treatment on astandardizedscalewith a rangeof 0–10, with 10 beingthe most severe. He then administers the new program, and measures children’s pain levelsafter treatment. Does the new treatmentdecreaseself-reported levels of chronic pain?(16pts)PatientPainbeforetxPainaftertx12345678910111213141516956431099752583678643386784445538

SPSS Cumulative Assessment Instructions - Page 2 preview image

Loading page ...

SPSS Cumulative Assessment Instructions - Page 3 preview image

Loading page ...

PSYC 355Page2of13a)SPSS outputPaired Samples StatisticsMeanNStd. DeviationStd. Error MeanPair 1Pain_before_tx6.13162.446.612Pain_after_tx5.38161.928.482Paired Samples CorrelationsNCorrelationSig.Pair 1Pain_before_tx& Pain_after_tx16.710.002Paired Samples TestPaired DifferencesMeanStd. DeviationStd. Error Mean95% Confidence Interval of the DiffeLowerUppePair 1Pain_before_tx-Pain_after_tx.7501.732.433-.173b)SPSS graph

SPSS Cumulative Assessment Instructions - Page 4 preview image

Loading page ...

PSYC 355Page3of13c)CurrentAPA-style Results sectionFrom the correlation table we see that there is a correlation between pain before tx and pain aftertxat 5% level of significance because the p value corresponding to r=0.710 is 0.002 which is lessthan 0.05 at 5% level of significance and also the correlation between them is strong andpositive.We can determine from a paired samples t-test that the mean pain score after treatment was notsignificantly lower than before treatment, t (15) = 1.732, p = 0.052>0.05 at 5% level ofsignificance, one-tailed. The mean score of self-reported pain in children after treatment was5.38 (SD = 1.93) and before treatment was 6.13 (SD = 2.45). Conclusion: the treatment is not

Preview Mode

This document has 13 pages. Sign in to access the full document!

Report

Study Now!

Document Details

Related Documents

Statistics - Univariate Inferential Tests

Statistics - Sampling

Statistics - Probability

Statistics - Principles of Testing

Statistics - Numerical Measures

Statistics - Introduction to Statistics

Statistics - Graphic Displays

Statistics - Cummulative Reviews

Statistics - Common Mistakes and Tables

Statistics - Bivariate Relationships

Company

Explore

Study Tools