Variables, theoretical framework and hypotheses

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  • 1. Variables, Theoreticalframework andHypotheses

2. value varies with respect to time,person and objectProduction unit may yield different unitswith different workersAbsenteeism: Value may vary in differentdepartmentsMotivation levels: very high to very lowVariables 3. Dependentvariable (criterion variable)Independent variable (predictor variable)Moderating variableIntervening variableTypes of variables 4. Primary interest to the researcher To understand and predictExample:A manager is concerned that the sales of a new productintroduced after test marketing it do not meet hisexpectationsExercise:A researcher is interested in investigating the debt-to-equity ratio of manufacturing companies in IndiaAn applies researcher wants to increase the performance of organizational members in a particular bankDependent 5. It influences the dependent variable in either positiveor negative way Example:Success of a new product will increase the stock valueof the firmExercise:A manager believes that good supervision and trainingwould increase the production level of workersA consultant is of the opinion that much benefit wouldaccrue by buying and selling at the appropriate timesin a financial environment where stocks are volatile.Independent 6. It has a strong contingent effect on the independent-dependent variable relationshipExample:It has been found that there is a relationship between availability of reference manuals that manufacturing companies have success to , and to project rejects. That is, when workers follow the procedures laid down the manual, they are able to manufacture the product which are flawless.Moderating 7. Availability of# nos of rejects Reference ManualDVIVInterest &InclinationDiagram of RelationshipsMV 8. A research study indicates that the better the qualityof the training programs in an organization andgreater need of the growth needs of theemployees(the need to develop and grow on the jobis strong), greater is their willingness to learn newways of doing things Another study indicates that the willingness of theemployees to learn new ways of doing things is notinfluenced by the quality of training programs offeredby the organizations to all people without anydistinction. Only those with high growth needs seemto have the yearning to learn to do new thingsthrough specialized training.Distinction between moderateand independent variable 9. Exercise:A visitor to a factory observes that the workers in thepacking department have to interact with one another toget the work done. The more they interact the more theytend to stay after hours and go to the local pub togetherfor a drink. However, the women packers , even thoughthey interact with other as the men, do not stay late, nordo they visit pub after the work hours.Exercise:A manager find that off-the job classroom training has agreat impact on the productivity of the employees in herdepartment. However she also observes that theemployees over 60 years of age do not seem to derivemuch benefit and do not improve with such training.Exercise:label variables 10. This variable is on that surfaces between the time the independent variables start operating to influence the dependent variable and time their impact is felt on it.Independent variable workforce diversity influences the dependent variable organizational effectiveness, the intervening that surfaces as a function of the diversity of the workforce that is the creative synergy. Creative energy surface in time t2 as a function of workforce diversity in t1 and bring about organizational effectiveness in t3.Intervening variableWorkforceCreative OrganizationalDiversity (t1) Synergy(t2)Effectiveness(t3) 11. Failure to follow accounting principlescause immense confusion, which in turncreates a number of problems for theorganization. Those with vast experiencein bookkeeping, however, are able toavert the problems by taking timelycorrective action.List the variables, explain relationships anddiagram theseExercise 12. The manager of Haines company observes that the morale of employees in her company is low. She thinks that if their working conditions are improves, pay scales are revised, and the vacations and benefits are made attractive, the morale will be boosted. She doubts, however, if an increase in pay scales would raise their morale of all the employees. Her conjecture is that those who have supplemental incomes will not just be turned on by higher pay, and only those without side incomes will be happy with increased pay with resultant boost of morale.List the variables, explain relationships and diagramthese and also define the problem. 13. Make up three situation where motivation to work would be an independent variable, intervening variable, and a moderating variable. 14. FoundationIdentifiesvarious types of variablesNature and directionElaborate the network of associationInterviews, literature survey and observationsExperience and intuition also guidesTheoretical Framework 15. With airline deregulation, there were price wars among the various airlines that cut costs in different ways. According to the reports, Delta airlines faces charges of air-safety violation when there were several near collisions in the mid air and once accident resulted in 137 deaths in 1987. Four important factors that seem to have influenced these are poor communication among the cockpit crew members themselves, poor coordination between ground staff and cock pit crew, minimal training given to cockpit crew, and the management philosophy that encouraged a decentralized structure. It would be nice to know if these factors did indeed contribute to the safety violations, and if so, to what extent.Delta Airlines 16. Variables labeledRelationships discussedLogical relationships are discussedSchematic diagramTraining Communication among Cockpit crew Communication between Air safety ground control and cockpitviolationDecentralization 17. Logically conjectured relationship between two or more variablesIf pilots are given adequate training to handle midair crowded situation, air safety violation would be reducedHypotheses- testing of theserelationships 18. IF- Then statementsIf employees are more healthy will take sickleave less frequentlyDirectional & Non Directional Hypotheses (positive,negative, more than, less than and like) Greater the stress experienced in job, lower thejob satisfaction of employees Women are more motivated than men There is a relationship between age and jobsatisfaction There is difference between the work ethic valuesof American and Asian employeesStatements of HypothesesFormats 19. Null hypothesis: it is a proposition that states definitive, exact relationship between two variablesNo significant relationship or no significant differenceRejection of null hypothesis accepts alternate hypothesis 20. State null or alternate hypothesisChoose appropriate statistical parametric or non parametric testDetermine level if significanceSee the output, look for critical values as it demarcates the region of rejection from that acceptance of the null hypothesisResultant value larger than critical value, null hypothesis rejected and if resultant value is less, then null accepted, alternate rejectedSteps in Hypothesis testing 21. Management of Scottys Inc., a popular hardware dealerwanted to know about the overall image among knowncustomers within the Atlanta metropolitan market. Theinitial question was What marketing strategies need tobe either developed or modified to increase satisfactionamong our current and future segments?It thus became imperative to know if the presentsatisfaction level of Scottys among its customers.The logic was simple - if the satisfaction level whichwas 3.9 the previous year, shows any improvement thisyear, then Scottys would adopt the same marketingstrategies as it done for the last few months! 22. H0 Null Hypothesis = 3.9H1 Alternative Hypothesis > 3.9Develop five different hypotheses for Haines company 23. Z ~ N(0,1) = .05 0 z I0.91Accept H0 1.6449 Reject H0calculated criticalZcalculated < Zcritical Accept H0: = 3.9 24. STATE OF NATURE NULL TRUENULL FALSEFAIL TOREJECT NULLCORRECT DECISION TYPE II ERRORACTION REJECT TYPE I ERROR NULLCORRECT DECISION 25. Develop five different hypotheses for Haines companyExercise