PSYCH 629 Week 3 Job Performance and Its Predictors Example

What Counts as a Good Installer? Defining Performance and Testing What Predicts It With a Year of Crew Data

[Student Name]

University of Phoenix

PSYCH/629: Introduction to Industrial/Organizational Psychology

Week 3 Assignment

[Instructor Name]

[Date]

The solar company, its crews and the performance data are composites written for a model paper; research findings come from the sources listed.

I-O psychologists cannot predict performance until they define it. A single overall rating hides different kinds of contribution and different kinds of failure. This paper defines performance for residential solar installers at my company, examines what predicts each dimension and tests some of these relationships with our own data.

The Current Measure

At Sunridge Solar, foremen rate each installer quarterly on one scale from one to five labeled "overall performance." Ratings cluster at four, and installers complain that the scores do not reflect what they do. When I asked foremen what made an installer excellent, they described very different things: speed, never needing rework, helping new crew members, never cutting corners on safety and showing up every day. A single score cannot capture all of these.

Dimensions of Performance

A study of Air Force mechanics (Motowidlo & Van Scotter, 1994) showed that supervisors' judgments drew on two separable kinds of contribution. Task performance covered the technical core: the skill and effort that turn materials into finished work. Contextual performance covered the support around that core, such as volunteering, helping, persisting and following rules, which keeps the social and organizational setting running. Each contributed independently to overall ratings, and they were predicted differently: experience predicted task performance more strongly, while personality predicted contextual performance more strongly.

For installers, task performance means accurate layout, secure mounting, correct wiring and finishing installs within the scheduled time. Contextual performance includes showing a new hire how to route conduit, staying late to finish a job on a hot afternoon and keeping the truck organized for the next day's crew.

Safety and Counterproductive Behavior

Two further dimensions matter on a roof. Safety performance includes compliance, such as wearing a harness and following ladder procedures, and participation, such as reporting hazards and reminding teammates. Counterproductive work behavior includes actions that harm the organization or its members, such as unexcused absences, damaging equipment, rudeness to homeowners or theft of materials.

Rotundo and Sackett (2002) used policy capturing to study how managers combine performance dimensions into overall judgments. Managers rated profiles that varied in task, citizenship and counterproductive performance. On average, task performance and counterproductive behavior carried the most weight, with citizenship somewhat less, but managers differed in their policies: some emphasized task performance, others counterproductive behavior. The finding explains why our foremen's single ratings may not be comparable across crews: each foreman weighs dimensions differently.

Adapting When the Job Changes

A fifth dimension is becoming more important in solar work: adapting to change. Panel models, inverters and mounting systems change every year or two, utilities revise interconnection rules and the company has begun installing home batteries, which require new procedures. Some installers pick up new equipment quickly and help others learn it; others struggle and fall back on old habits. Adaptive performance, meaning how well people adjust to new tasks, tools and conditions, is not captured by our rating at all, yet it may predict who becomes a foreman. I include it in the new form as a single anchored item for now, because the company has only one year of battery installs to observe.

Criterion Problems

Our measure suffers from deficiency, because it ignores safety and helping unless a foreman happens to weigh them, and from contamination, because ratings may reflect how well an installer gets along with the foreman. Ratings bunched at four also suggest leniency.

Predictors of Task and Contextual Performance

Barrick and Mount (1991) meta-analyzed studies relating the Big Five personality dimensions to job performance across occupational groups and found that conscientiousness, the tendency to be dependable, organized, careful and achievement oriented, was a consistent predictor across all occupations and criteria, though with modest correlations. Other traits predicted performance in specific jobs, such as extraversion in sales and management. For installers, conscientiousness should relate to careful workmanship and rule following, while agreeableness may relate to helping teammates.

Predictors of Safety

Christian et al. (2009) meta-analyzed research on workplace safety and tested a model linking person and situation factors to safety performance and outcomes. Safety knowledge and safety motivation were the strongest proximal predictors of safety performance, which in turn related to fewer accidents and injuries. Distal factors worked through these: safety climate, meaning shared perceptions of how much the organization values safety, strongly predicted motivation and knowledge, and conscientiousness had smaller effects. The findings suggest that who is hired matters, but the work environment matters at least as much.

A careful installer on a careless crew will clip in less often than the same installer on a crew that expects it.

What Our Data Show

With the owner's permission, I assembled a year of records for fifty-two installers who worked at least six months: installs completed per day worked, workmanship callbacks per hundred installs, recorded safety violations, unexcused absences and foreman ratings. Twenty-four installers had also completed a brief conscientiousness questionnaire during a training session the year before, and all sixty installers completed a short safety climate survey describing their crews.

Several patterns appeared. Foreman ratings correlated moderately with installs per day but only weakly with callbacks and not at all with safety violations, confirming that ratings mostly captured speed. Among the twenty-four with questionnaire data, conscientiousness correlated negatively with callbacks and absences, consistent with the meta-analytic evidence, though the sample is small. Crews whose members rated safety climate higher had fewer safety violations, even after accounting for crew size and experience.

Rater Errors on the Roof

Foremen are skilled installers, not trained raters, and their ratings show familiar errors. Leniency pushes ratings upward because foremen work beside installers every day and do not want conflict. Halo spreads one impression, such as speed, across everything. Recency gives the last two weeks too much weight. And similarity bias may favor installers who share a foreman's background or humor. None of these errors requires bad intent; they arise when people make broad judgments from memory. Behavioral anchors, separate dimensions and brief notes kept through the quarter all reduce them.

Limits

The data come from one company, the conscientiousness sample is small and the correlations do not establish cause. Safety violations depend on what foremen choose to record, which may vary across crews.

A New Rating Form

I proposed replacing the single rating with a short form covering four dimensions, each with behavioral anchors drawn from foremen's examples: workmanship and productivity, teamwork and helping, safety compliance and participation and reliability and conduct. Objective measures such as callbacks and absences will be shown alongside ratings. Foremen will complete rater training, including practice with sample profiles, to align their standards. And safety climate will be measured twice a year by crew, so that safety problems are addressed at the crew level, not only the individual.

Implications for Selection and Training

The analysis connects to last week's selection plan: the work sample's safety items and the structured interview's questions about following rules target safety and conscientiousness, which our data and research link to callbacks and violations. Training, the topic of the coming week, should address safety knowledge and motivation, which research identifies as the strongest proximal predictors.

Conclusion

Performance for solar installers includes getting the work done, supporting the crew, working safely and avoiding harmful behavior. Research and our own data show that these dimensions differ, are predicted by different factors and are weighed differently by raters. Measuring them separately gives the company better information for hiring, feedback and safety.

References

Barrick, M. R., & Mount, M. K. (1991). The Big Five personality dimensions and job performance: A meta-analysis. Personnel Psychology, 44(1), 1-26. https://doi.org/10.1111/j.1744-6570.1991.tb00688.x

Christian, M. S., Bradley, J. C., Wallace, J. C., & Burke, M. J. (2009). Workplace safety: A meta-analysis of the roles of person and situation factors. Journal of Applied Psychology, 94(5), 1103-1127. https://doi.org/10.1037/a0016172

Motowidlo, S. J., & Van Scotter, J. R. (1994). Evidence that task performance should be distinguished from contextual performance. Journal of Applied Psychology, 79(4), 475-480. https://doi.org/10.1037/0021-9010.79.4.475

Rotundo, M., & Sackett, P. R. (2002). The relative importance of task, citizenship, and counterproductive performance to global ratings of job performance: A policy-capturing approach. Journal of Applied Psychology, 87(1), 66-80. https://doi.org/10.1037/0021-9010.87.1.66