Explain why manipulation of an independent variable is a necessary component of an experiment

What will be an ideal response?


In an experiment, manipulation of the independent variable is necessary to avoid the directionality problem and to establish the direction of the relationship. The intent is to demonstrate that the manipulation of one variable (the independent variable) causes changes to occur in a second variable (the dependent variable).

Psychology

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According to Robert Havighurst, which of the following terms is considered a time when a person is most ready to acquire a new ability?

a. Coping situation b. Sensitive period c. Psychosocial conflict d. Developmental task

Psychology

When a person accepts values dictated by society (not those personally attained) as their own, he or she is experiencing:?

a. ?the human dilemma b. ?a life of social meaning c. ?constructive alternativism d. ?self-alienation

Psychology

Your friend Brad is concerned about his 12-month-old son Phillip's social development. Brad has noticed that Phillip will sit next to another child his own age and each of them will do his own puzzle, rather than cooperating on one puzzle together

Occasionally, they will look at each other, smile, and say a word or two. Brad feels that Phillip should be interacting more with his peers. What can you tell Brad about the development of play in toddlers and preschoolers that will alleviate his concerns? What will be an ideal response?

Psychology

The tendency for people in a brainstorming group to perform at relatively similar levels, generating about the same number of ideas, is called

a. social facilitation b. social loafing c. social matching d. social inhibition

Psychology