Answer: Construct validity
Explanation:
Construct validity is the degree to which a test is done to measure what it claims. Construct validity defines how well the test or experiment actually measures its claims and whether the operational definition of the variable reflect the true theoretical meaning of the concept being illustrated.
The psychologist develops a questionnaire that is designed to study the variable of self-esteem and then conducts different studies to investigate the differences between people who had low scores on sled esteem and the people who had high score on self esteem. The reason for this was to get an accurate method of measuring self esteem. This means the psychologist wants to establish construct validity.
The answer would be True.
I hope this helps :)
Selective learning is the answer to this question
Dumpster diving in terms of social engineering means mingling with the insignificant to find the significant.
Explanation:
In terms of social engineering Dumpster driving is exactly how it is in the real life.
There is no guarantee and the person diving runs a lot of risk but more that usually there is enough rewards in it if one can ignore the things that surround it.
The occasional scrounge would be able to find something very useful about the topic they are researching just like the professional divers make profits of thousands from diving into the dumpsters and finding expensive things for themselves.