The researchers were most concerned about External events.
<h3><u>Explanation: </u></h3>
Quasi-experimental designs are different from true experimental designs. They resemble the experimental research but it is not the real one. There are various types of quasi-experiment design, one of the important designs is the pretest and posttest design which is discussed in the above scenario.
The most likely reason for the experimental effect is based on selection bias. Self-fulfilling Prophecy & Instrument Decay might be the potential cause of the internal validity that is linked with the experiment done by the staff.
It would give students more options when choosing what to eat at lunch and will encourage more students to eat lunch at school. Those that are on restricted diets will actually have something to eat at school which is very important, all dietary needs should be catered for in all schools.
Answer:
1. Effective Communicator
2. Emotionally balanced
3. Open minded
4. Analytical Mindset
Explanation:
1. Effective Communicator: an effective criminal investigator should master the art of effective communication, as it will always come in handy and easier to relate with people during investigation or sourcing for details or information.
2. Emotionally balanced: effective criminal investigator should avoid sentiment, prejudice or personal opinion to affect his or her approach to the information available.
3. Open minded: an effective criminal investigator should be openede to different ideas and approach in tacklingoblems. In other words, s/he should be flexible to various ideas.
4. Analytical Mindset: the ability to pick up leads and recognize suspects requires looking at cases from many different angles, using a methodical or well analyzed approach.