Answer:
Food is essential for the survival of living organisms. It provides us with energy to carry out daily activities and develop, grow and repair our body parts in case of any damage.mark as branilist
It has a positive value.
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These listed below would best help an athlete be successful in strategy training. Attitude is main strategy which can determine how much you can achieve.
Time of training should be for approx. 45-60 minutes to improve fitness.
To overcome the failures and to achieve goals, it is essential to have a person compelling vision. A lot of athletes achieve success after failures due to their vision. They have a dream which motivates them to perform better.
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Which person is known as athlete?</h3>
A person who is expert in sports and other forms of physical exercise.
Athlete should set goals which is considered to be the first step in the process of achieving success. Goals keep successful athletes motivated in the ground while playing.
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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
