Which research example reflects the idea of using consistent methods $($i$.$e$.,$ high reliability$),$ measuring what is intended $($i$.$e$.,$ high validity$),$ and making results applicable to various contexts $($i$.$e$.,$ high transferability$)$ in business research? $($MCOM Ch $4)$Links to an external site.

Which research example reflects the idea of using consistent methods $($i$.$e$.,$ high reliability$),$ measuring what is intended $($i$.$e$.,$ high validity$),$ and making results applicable to various contexts $($i$.$e$.,$ high transferability$)$ in business research? $($MCOM Ch $4)$Links to an external site.

A retail store implements a training program in October to improve customer service and observes an increase in revenue in November

A research team$$conducts interviews with managers from various industries to explore the impact of leadership styles on employee motivation.

A company conducts a one$-$time survey to measure customer satisfaction, using questions suggested by an external consulting firm

A company conducts a yearly survey with the same questions $($about pay and parking$)$ to address overall employee satisfaction and consistently reports high satisfaction

All of the above