In an experimental design the variable the researcher has control over and that is different for the treatment and control groups is called the .?

In an experimental design the variable the researcher has control over and that is different for the treatment and control groups is called the .?
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Which of the following designs permits a comparison of pretest scores to determine the initial equivalence of groups on the pretest before the treatment variable is introduced into the research setting. a. One-group pretest-posttest design b. Pretest-posttest control group design c. Posttest-only design with nonequivalent groups d. Both b and c

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In ExPost Faco research the position of the variable is Options: A) Generally the Independent variable happened before the research B) The researcher begins with single dependent and independent variables C) And after it he studies the possible relation in a regressed form D) All the above

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Which of the following types of sampling involves the researcher determining the appropriate sample sizes for the groups identified as important, and then taking convenience samples from those groups? a. Proportional stratified sampling b. Quota sampling c. One-stage cluster sampling d. Two-stage cluster sampling

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The group that does not receive the experimental treatment condition is the ________. a. Experimental group b. Control group c. Treatment group d. Independent group

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good qualitative problem statement: a. Defines the independent and dependent variables b. Conveys a sense of emerging design c. Specifies a research hypothesis to be tested d. Specifies the relationship between variables that the researcher expects to find

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Which design is applied when experimental material are limited and homogenous

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The experimental design which provides maximum degree of freedom for error

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The simplest experimental design

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The meaning of Crossed Reaction Experimental Design is Options: A) Such an experimental design where all the reactions are carried out with the subjects in a sequential fashion B) Such where the subject related errors are eliminated an experimental design C) Both of the above are correct D) None of the above are correct

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According to Lindquist the types of experimental design are Options: A) Six B) Four C) Two D) None of the above

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Randomly assigning treatment to experimental units allows: a. population inference b. causal inference c. both types of inference d. neither type of inference

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The posttest-only design with nonequivalent groups is likely to control for which of the following threats to internal validity: a. History b. Differential selection c. additive and interactive effects d. differential attrition

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Which of the following method is free from the difficulties related with sampling, control and validity of inferences? Options: A) Historical method B) Philosophical method C) Experimental method D) Survey method

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