e Changing US Job MarketThe US experienced a cycle of employment growth and decline in the first decades of the 21st century partly due to careers shifting from and work to jobs. Employment also declines during and grows during recoveries. Employment Datacaused a recession that peaked in 2003.From 2007 through 2009, there was a loss of more than 8.7 million jobs. This time period is called the .The first group of retirements began in 2011. The average age of US workers in 2020 will be higher than and at the same time, the 20- to 30-year-old age group will grow faster than the overall labor force for the first time in years. Other groups that will go through employment growth rates are: Asian-, Hispanic-, and Aftican-American workers. The percentage of white non-Hispanic will drop from ___percent to___percent by 2020.One of the most striking trends in employment has been the participation of ___ . By 2020 ___ percent of all jobs in the US will be held by___.

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e. g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.