SWK 333: Research for Social Work II Midterm Exam Spring 2022

SWK 333: Research for Social Work IIMidterm ExamSpring 2022
 Student name: _________________________ Directions: This exam is open book and open note.  However, this is an individual exam.  You may not work with peers or seek assistance on answers from other individuals.  Any such behavior will result in an automatic F on the exam.  After completing the exam, upload to the assignment portal on Blackboard under “Major Assignments” Due Date: Friday, March 11 at 11:59 PM Multiple Choice: Highlight in bold the correct answer to the following statements. 1.                           The symbol “f” indicates … a.                            the number of cases with a given valueb.                           the number of cases in the study samplec.                            (when the variable is categorical), the proportion of cases with a given valued.                           a case’ key characteristice.                            subgroups Review the below table and answer the questions that follows: Table 1Scores on Statistics Exam   Score      FrequencyPercentageCumulativefrequencyCumulativepercentage59 or below3 31560 to 69525  70 to 795 136580 to 8942017 90 or above3 20100Note. N = 20.2.                           What is the sample size?a.                            20b.                           100c.                            .20d.                           None of the above 3.                           Look at Table 1 above: What is the percentage that scored 90 or above?Formula:  % = (f/n) × 100a.                            10b.                           15c.                            20d.                           3e.                            100 4.                           What is the mean of the values: 10, 15, 35 Formula:  a.                            10b.                           15c.                            35d.                           20e.                            60 5.                           Consider this data: 1, 2, 3, 6, 52.  Which measure is preferred? a.                            medianb.                           meanc.                           both are equally preferred. 6.                           Which set of observations has greater variability? a.                            6,7,8,9,10b.                           1,6,8,10,23c.                            variability is the same for both a. and b. 7.                           What is the range of the values 8, 5, 3, 9, 6? a.                            3b.                           4c.                            5d.                           6e.                            8 8.                           The standard deviation of scores on a self esteem measure is calculated to be 10 points.  After calculation, it is discovered that all scores were, mistakenly, scored 3 points too low.  What is the standard deviation of the correct scores? a.                            13b.                           10c.                            7d.                           Cannot be determined from the information provided 9.                           Calculate the standard deviation of the observations 2,4,6. Formula:   a.                            0b.                           1c.                            2d.                           3e.                            4 10.                     In a normal distribution about _____ % of cases are located within one standard deviation of the mean. a.                            68b.                           95c.                            99d.                           50e.                             none of the above.           11.                     The areas located in the extreme right and left sides of a distribution are termed the distribution’s ________.a.                            extreme areasb.                           outsidesc.                            tailsd.                           skewse.                            tips 12.                     When a distribution is negatively skewed, scores tend to cluster more tightly in the ______ side/area of the distribution a.                            left (lower)b.                           right (upper)c.                            scores are equally concentrated on both sides. 13.                     The following distribution: is …a.                            negatively skewedb.                           normal in shapec.                            positively skewedd.                           bimodal14.                     Kurtosis refers to the degree of _________ of a distribution.a.                            skewnessb.                           peakednessc.                            symmetryd.                           normality 15.                     Taylor’s z score on X is 0.74.  How many standard deviations above or below the mean is her score?a.                            1.00 standard deviation belowb.                           0.74 standard deviation belowc.                            0.74 standard deviation aboved.                           1.00 standard deviation abovee.                            cannot be determined 16.                     The mean score on a self-esteem scale is 50.  The standard deviation of scores is 10.  Andrea scored 32.  What is her z score? Formula:  z = (X − ) ÷ sa.                            −1.80b.                           −1.00c.                            0.00d.                           1.00e.                            cannot be determined 17.                     The greater the number of visits by family members, the lower the depression level of nursing home clients.  Visiting and depression level are … a.                            unrelatedb.                           relatedc.                            neither related nor unrelated 18.                     Choose the risk ratio that conveys the largest associationa.                            .1b.                           .2c.                            .3d.                           .4e.                            .5 19.                     Odds ratios that are reciprocals…a.                            convey the same size of associationb.                           convey differing sizes of associationc.                            always convey the absence of any association at all 20.                     An odds ratio calculates to 0.08.  This conveys a _________ relationship between variables.a.                            the absence of relationshipb.                           small (or very small)c.                            medium-sizedd.                           large (or very large)  Open Ended Questions Review table 6.1 and answer the questions that follow: Table 6.1   Delinquency Prevention Program 1 Delinquency Prevention Program 2   Commits offense within one year 4033% 4050% 8040% Does not commit offense within one year 8067% 4050% 12060%   12060% 8040% 200100%   21.                     What is the total number of participants in Program 1 who commit an offense?  22.                     What is the D% between participants who do not commit offense within one year in Program 1 and participants who do not commit an offense within one year in Program 2? 23.                     Based on the D% in Q22, what is the size and strength of the relationship?  24.                     Eighteen percent of boys versus 12% of girls engage in aggressive behavior during recess according to a behavioral observation tool.  What is the risk ratio (RR)? Treat boys as the first group. Formula:  RR = %1 ÷ %2  25.                     Eight of 12 youth successfully complete a delinquency prevention program.  For these youth, what are the odds of successful completion? Formula:  odds = %e ÷ %ne  or  odds = ne ÷ nne  26.                     40 (40%) of 100 clients who participate in Job Training Program 1 versus 25 of 100  (25%) participating Job Training Program 2 obtain full-time employment within a year.  With Program 1 treated as Group 1 and obtaining full-time employment as the event, what is the odds ratio? 27.                     How would you explain your interpretation of the odds ratio you calculated in Q26? 28.                     What is the difference between descriptive coding and values coding? 29.                     In our week on qualitative research we discussed reflexivity.  Discuss how your own positionality as it relates to your research project (quantitative or qualitative). 30.                     Think about your group research project for this class.  Based on what you currently know about data analysis, what will you do for your initial data analysis?