The threat to validity that is likely to occur in the scenario above is Selection Bias.
<h3>What is Selection Bias?</h3>
This occurs when a researcher has control and intentionally chooses those who are going to be researched, observed, or studied. To eliminate this bias, the scientist must ensure that the sample population is selected very randomly.
Other threats to validity are:
- History
- Maturation
- Attrition
- Social Interaction
- Instrumentation
- Testing
- Regression to the mean, etc.
Please see the link below for more about Threat to Validity:
brainly.com/question/4168290
The solid backwards flag on a pole tell about the field weld.
<h3>What is the
solid backwards flag on a pole tell about?</h3>
It should be noted that the solid backwards flag on a pole tell about the field weld. and this field weld serves as the symbols which is usually an indication of the the welding processes that is been used in metal joining operations.
The weld could be inform of localized or “all around”, and this could be shop or field weld, however they are of the same function.
Learn more about Flag on:
brainly.com/question/25759088
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Answer:
The sum total of our tendencies, behaviours, attitudes and characters creates our PERSONALITY.
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