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Week Three QuizPSY/335 Version 1

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University of Phoenix Material 

Week Three Quiz 

Complete the following quiz. Choose your response by highlighting your answer.

1. When we perform an experiment, wea. measure independent ariables,b. produ!e dependent ariables.!. produ!e !ontrol ariables.d. produ!e a !omparison.e. hold independent ariables !onstant.

". The !ontrol group in an experimenta. fixes the leel of a ariable a!ross all experimental !onditions.b. is often untreated.!. re!eies the same leel of the independent ariable as the experimental group.d. refers to the manipulation of the independent ariable.

#. $n resear!h on the de!ompression of pregnant rats, the independent ariable is %%%%%%, a

dependent ariable is %%%%%%%%, and a !ontrol ariable is %%%%%%%%%%%%%%%.a. &edu!ed air pressure' behaioral tests' strain of the ratb. (ody weight' !limbing ability' time of day!. )tmospheri! pressure' age of rat' !limbing abilityd. *umber of de!ompressions' body weight' home !agee. +xperimental group' !ontrol group' test performan!e

. $n experiments, independent ariables area. the result of !areful measurements.b. extraneous to the experiment and held !onstant.!. extraneous to the experiment and allowed to ary randomly.

d. independent of experimenter !ontrol.e. aried by the resear!her.

-. ependent ariables area. manipulated by the resear!her.b. potential independent ariables that are held !onstant.!. measured by the resear!her.d. probable behaioral !auses.

/. 0ne reason a alid experiment may produ!e null results isa. the range of leels in the independent ariable was insuffi!ient to show an effe!t.b. the dependent ariable refle!ts a broad range of performan!e.!. that the experiment is !ondu!ted in an enironment that is too diffi!ult.

d. that rea!tiity o!!urs in the parti!ipants e.g., they adopt the role of 2good behaior34.

5. $n experiments, the independent ariable should be %%%%%%%%%, the dependent ariable should

be %%%%%%%%%%, and the !ontrol ariable should be %%%%%%%%.a. !ontrolled' !onstant' randomizedb. !onstant' an effe!t' !ausal!. free' restri!ted' eleatedd. balan!ed' un!onfounded' an effe!t

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Week Three QuizPSY/335 Version 1

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e. manipulated' measured' held !onstant

:. )n intera!tion o!!urs whena. an independent ariable effe!ts a dependent ariable.b. one independent ariable effe!ts a se!ond independent ariable.!. the effe!t one dependent ariable has is not the same at ea!h leel of a se!ond

dependent ariable.d. the effe!t one independent ariable has is not the same at ea!h leel of a se!ond

independent ariable.

;. Whi!h of the following is an example of the eneralizeb. )ttribute !ausality!.

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1/. Test reliability determined by a !orrelation between s!ores from the same test taken at two

different times is !alleda. test@retest reliability.b. parallel forms reliability.!. split@half reliability.d. predi!tie reliability.

15. ?tatisti!al reliability determines whether resultsa. will o!!ur fie per!ent of the time.b. o!!ur be!ause of !han!e.!. are internally alid.d. are produ!ed by bias.

1:. Whi!h of the following is a maAor threat to internal alidity=a. Confoundingb. eiant@!ase analysis!. Trun!ated ranged. ependent ariables

1;. ) type of alidity that is spe!ifi!ally !on!erned with being able to make !ausal statements about

relationships between ariables is %%%%%%%%%%%%%%% alidity.a. +xternalb. $nternal!. Constru!td. 9redi!tie

"7. ) repli!ation of resear!h helps to determine %%%%%%%%%%%%%% alidity.a. Constru!tb. +xternal!. $nternald. 9redi!tie

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