Failure of an independent variable to produce changes in a dependent variable is called a
a. statistical error.
b. failure to replicate.
c. null result.
d. confound.
C
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A randomized clinical trial is a study in which __________.
A. all subjects are treated the same, to see what percentage of the total gets better, what percentage stays the same, or what percentage gets worse B. people are assigned to different types of treatment in alternating alphabetical order, to see which treatment is best C. people go through different treatments in random order, to see which one works best D. people are assigned to different groups based on a flip of the coin; one half goes to a treatment group and the other to a seemingly identical placebo group
Cody, a 15-year-old diagnosed with ASD, is being treated with an intervention that focuses on teaching structure, involves his parents, emphasizes skills development, and includes generalization. This is most likely the Treatment and Education of Autistic and related Communication-Handicapped Children (TEACCH) model
Indicate whether the statement is true or false
The onset of puberty can be influenced by one's social environment
a. True b. False Indicate whether the statement is true or false
Personality refers to the style in which we interact with the world, particularly with other people
Indicate whether this statement is true or false.