Personnel Selection
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Journal ofOccupation aland OrganizationalPsycholog y (2001), 74, 441–472 Printedin GreatBritain 441 Ó 2001The British Psychologi calSociety Personnel selection Ivan T. Robertson* and Mike Smith Manchester School of Management, UMIST, UK Themain elementsin thedesign and validation of personnelselection procedure s havebeen in placefor many years.The role of jobanalysis, contemporary models of workperformance and criteria are reviewed criticall y.After identifyin gsome important issues andreviewing research work on attractingapplicants, including applicantperception sof personnelselection processes, theresearch on major personnelselection methods is reviewed.Recent work on cognitiveability has conrmed the good criterion-relatedvalidity, but problems of adverseimpact remain.Work on personalityis progressing beyondstudies designed simply to explorethe criterion- relatedvalidity of personality.Interviewand assessment centreresearch is reviewed,and recent studies indicating the key constructs measuredby both arediscussed. In both cases, oneof thekey constructs measuredseems to begenerally cognitive ability. Biodata validity and the processes usedto developbiodata instruments arealso criticallyreviewed.The articleconcludes with acriticalevaluation of theprocesses forobtaining validity evidence(primarily from meta-analyses)andthe limitations of thecurrent state of theart. Speculativ efutureprospects arebrie y reviewed. Thisarticle focuses on personnel selectionresearch. Muchcontempora ry practice withinpersonnel selectionhas been inuenced by the research literature, butit is clearlynot the casethat there isasystematiclinear owfrom the research literature intothe work ofpractitioners. The situationismuch more complex. Forexample, assessmentcentres were designedoriginal lyto meet aclearpractical need. Their originaldesign was heavily in uenced by psychologists.There was,however, relativelylittleresearch intosome of the specic componentsof assessment centres, when they were rstused for practicalpersonnel selectiondecision s,inthe armedservices and in commercial settings.Research intothe overallvalidity of assessmentcentres andinto the validity,adverseimpact and utility of many of the component partsof assessmentcentres followedfrom these highlypractical beginnings.In turn, thisresearch hasinformed the practice of contemporary assessmentcentres. Similarly,complex interplaytakes place for allother selection methods.This article, then, aswellas reecting contemporary research interests,as far aspersonnel selectionis concerned, willalso inevitab lyre ect contemporary practice tosome degree. *Requests for reprints should be addressedto Prof. IvanRobertson, Manchester School of Management,UMIST, PO Box88, Manchester M601QD, UK (e-mail: [email protected]). 442 IvanT. RobertsonandMike Smith The traditionalmodel for selectionand assessme ntpractice hasnot changedfor many years. Smith andRobertson (1993) indicated the majorsequence of events involvedin the designand validati on of any personnel selectionsystem. The traditionalsystem involves the initialdetailed analysis of the job. Thisanalysis is then usedto indicate the psychologicalattribute srequiredby anindivid ual who may llthe jobe Vectively. In turn, personnel selectionmethods are designedwith the goalof enablingthose responsib lefor selectionto attract and evaluatecandidat es’capabili tieson these attributes.A validationprocess is used toassess the extent towhich the personnel selectionmethods provide valid predictorsof jobperformanc e, orother criterionvariables such as absenteei smor turnover. Probablythe mostsigni cant change withinthe personnel selectionresearch literatureinthe lastdecade or sohasbeen the increasedcon dence thatresearcher s have inthe validityof mostpersonnel selectionmethods. This increased con dence hasarisen from the resultsobtained by investigatorsusing meta-anal ysis(Hunter & Schmidt, 1990).Meta-ana lyticstudies of awidevariety of personnel selection methodshave indicatedthatwhen the artefactuale Vectsof samplingerror, range restriction andmeasureme ntunreliabi lityare removed, the ‘true’validity of personnel selectionmethods is much higher thanoriginall ybelieved.Many selectionmethods have been subjectedto adetailedmeta-anal yticalreview. One of the bestlists of meta-analysesof selectionmethods is contained in Schmidt and Hunter’s (1998)article where they identifymeta-ana lysesof 17methods of selection.Figure1 isbasedon Schmidt andHunter’ s review andshows the validity, estimatedby meta analyses,of many selectionmethods. The numbers on the rightshow the validitieswhen overalljob performanc eratings—usually by superiors—are usedas criteria. The gureson the left of the diagramshow the validitiesobtained when progressduring training is used as the criterion.The twosets of resultsare very consistent, even thoughthere are fewer meta-analyses availablefor trainingcriteria. The tableis also interesti ngbecause itcasts light upon the developmentof thoughtconcerning criteria.In the mistsof time (before 1947!),psycholog istssought a singlecriterion against which they couldcalibrate selection instrumen ts.Followin gDunnette’s advicein the 1960s tojunk THE criteria,they soughtto obtain data for abankof diversecriteria. The useof multiplecriteria had disadva ntages:they were often impracticalor costlyto collect andoften ledto confusion because they producedsigni cantly diVerent validities. Some orderwas restored in the 1980s,when criteria were organizedinto three groups:productio ncriteria,personnel dataand judge- ments. Schmidt andHunter’ s tablesimply that,in practice, psychologistshave combined productioncriteriaand judgement alcriteria(usually superviso ryratings) toproduce two de-facto categories.The hegemony of supervisory ratingsas a criterionhas, if anything,been strengthenedby the current emphasison contextual andcitizensh ipbehaviour sasan element of jobperformanc e(see laterin this paper): supervisory ratingsare one of the few waysthat such occupatio nal citizenshipcan be gauged. Asfar ascriteria are concerned, the mostsigni cant changes within personnel selectionresearch concern the broadeningof the constructof jobperformanc e Personnelselection 443 Figure 1. Accuracyof SelectionMethods. suchthat job performan ce includesnot only e Vective performanceof the relevant tasksbut also contextua lperformance or organizationalcitizensh ipbehaviour (Borman &Motowidlo,1997; Coleman &Borman, 1999). 444 IvanT. RobertsonandMike Smith The areaof personnel selectionthat has developed least and seems increasingly problematicisjobanalysis .The traditionalrole ofjobanalysis within the personnel selectionparadigm is toprovidea xed startingpoint for allsubsequen tstepsin the process. Anyone who hasgiven the remotest thoughtto contempora ry organiz- ationallife willrecognize thatjobs are no longeranywhere near asstable as they were, even 10or 15years ago. At one time, the lifespanof awork-related technologyandthe career spanof individualemployees were reasonablywell matched. Nowadays,technologies,work practicesand even organizationalforms come andgo withinthe lifetime ofanindividualor even withina specic decade. Thismeans thatin many selectionsituatio ns,the requirementtounderstandthe job ismadeparticula rly complex anddi Ycult,because the jobin questionis likelyto be radicallydi Verent inways that are very di Ycultto predict within as little as 5 or maybe 10years. In theirreview of personnel selection,Houghand Oswald (2000) noted the importanceofthe changingnature of work andthe di Ycultiesthat this presents for traditionaljob analysis .They indicatethat, in recognition of the increasinglyrapid changesthat are takingplace inthe workplace,many researchersand practitio ners now conduct analysesthat focus ontasksand the cross-functionalskills of workers, rather thantraditio naljob analysis with its focus onmore staticaspects of jobs.In particular, they notedthe useof O*NET asa exible databasethatcontains information aboutboth work behavioursandworker attributes, includinginfor- mationon personality variables,cognitivevariables ,behaviouraland situatio nal variables(Petersen,Mumford, Borman, Jeanneret, &Fleishman,1999).This modern approach tojobanalysis has many usefulattribute sbutclearly cannot nd away of predictingthe future requirementsof jobswith any degree of certainty. Major issues Thisarticle is not intendedto provide a comprehensivereview of the research literatureconcerningpersonnel selectionin the lastdecade or so.The brief from the editorsof thisspecial issue to the authorsincluded a requirementto‘...impose themes over whatis powerful inthe areas,synthesiz e some ofthe existingliteratur e, make clearwhat we know andwhat we donot yet know’. Thisarticle has been writtenwith these requirementsin mind.Recent reviewsof the personnel selection research literatureprovidea detailedaccount ofthe current stateof the art.Hough andOswald (2000) and Salgado (1999), have both provideddetailed and compre- hensivereviews of the personnel selectionresearch literature.The review ofHough andOswald (2000) covers the whole areaof personnel selectionfrom joband work analysisthrough to professional,legal and ethical standard s.Salgado’s (1999)review concentrateson personnel selectionmethods. Both Houghand Oswald (2000) and Salgado (1999) provide convincin gevidence of the earlierstatement that the resultsof meta-analysishave provided strong evidence ofgoodvalidity for many personnel selectionmethods. Several methods, includingcognitiveability tests, personal ityquestionn aires,interview