Question

In: Psychology

1) What is the major purpose of controls in research? A. to counteract threats to validity...

1) What is the major purpose of controls in research?

A. to counteract threats to validity

B. to generate initial ideas

C. to produce research hypothesis when combined with problem statement

D. to increase participants willingness to participate

2) To double-blind control procedure involves

A. Having the experimenter's assistant sand the experimenter both blind to the hypothesis

B. Having both the experimenter and the participant blind to the assignment of each participant

C Having all participants blind to both the hypothesis and the assignment

D. None of the above

3)Extremely high control in laboratory setting

A. is crucial in case studies

B. is always accomplished

C. may lead to diminished external validity

D. is not useful

4) which of the following is a major control for order effects?

A. holding the variable constant

B. counterbalancing

C. including the factor as a research variable

D. random assignment of participants

Expert Solution

ANSWER-The major purpose of controls in research is to counteract threats to validity
ANSWER-To double-blind control procedure involves having both the experimenter and the participant blind to the assignment of each participant.
Both the experimenter nor the participant know what condition the participant is in.
ANSWER-Extremely high control in laboratory settings may lead to diminished external validity
External validity refers to how well the outcomes from a study could be generalized in real settings to the larger population.
ANSWER-Counterbalancing is a major control for order effects
Counterbalancing is a technique which is used to control order effects when using a repeated measures design.In this technique,the participant sample is divided in half, with one half completing the two conditions in one order and the other half completing the conditions in the reverse order.
For example,the first 10 participants would complete condition A followed by condition B, and the remaining 10 participants would complete condition B and then A. Any order effects should be balanced out by this technique.
It is also used to avoid the introduction of confounding variables.

Hayet Jeridi answered 2 hours ago

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