Hello, I was wondering if you could help with these questions, I been having a lot of trouble, I will appreciate if you could help, thank you very much!

A scale developer is super excited about a new instrument for measuring family resilience; s/he boasts that is highly reliable and has a Cronbach's alpha of .99. The developer also mentions the scale if 150 items long. Thinking that a family would have to be very resilient to get all the way through that assessment instrument, you suggest that the scale developer:

a. leave assessment development to the experts.

b. try to get a Cronbach's alpha of .99 by adding similar items.

c. use statistical techniques to reduce the number of items and response burden for persons taking the instrument.

d. none of the above.

Both split-half and internal consistency:

a. are determined from a single administration of a test.

b. are seriously subject to time sampling errors.

c. involve parallel forms of a scale or test.

d. are preferred measures of validity.