The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
Internal validity serves as the study which bring about the establishment of a trustworthy cause-and-effect relationship that can be found in treatment and an outcome.
it should be noted that Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.
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COMPLETE QUESTOIN:
Which of the following is a technique to improve internal validity ____________?
A) Experimenter expectancy
B) Participant bias
C) Use of a confederate
D) Addition of a control group
The type of growth that is best illustrated by the rabbit population is; exponential growth.
<h3>What is the population growth? </h3>
Looking the graph giving illustrated by the rabbit population seen online, it is clear that the number of individual in that population continually increase until a maximum point was reached. Thereafter, there was a slight decline in the population.
Finally, the maximum point reached on the graph is the carrying point and the value from the graph is about 0.4 million and we can say that this depicts an exponential growth model.
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Answer:
When non metals such as nitrogen and phosphorus are solids, they tend to be very dull and brittle which is due to the tendency of elements to revert to their original form.
