The extent to which the conclusions in an experiment are logical and justified because nothing was allowed to vary except the changes in the manipulated and measured variables is called _____

a. external reliability c. internal validity
b. internal reliability d. external validity


C
This is the definition of internal validity

Psychology

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The most common form of intellectual disability with a known biological cause is the chromosomal disorder known as

Answer:

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Of the following symptoms, which is not present in attention-deficit hyperactivity disorder?

A. hallucinations B. frequently leaving seat in the classroom C. making careless mistakes in schoolwork D. talking excessively

Psychology

A positive resolution of the psychosocial crisis of group identity versus alienation results in the achievement of the prime adaptive ego quality of

a. intimacy. b. isolation. c. friendship. d. fidelity to others.

Psychology

Stress only began to occur in the past 15 years because of technology.

Answer the following statement true (T) or false (F)

Psychology