Double approach-avoldance conflicts contaln which of the following? two choices that are both positive two choices that are both negative two choices that are both positive and negative one choice that has positive and negative aspects

I believe it's C. But don't take my word for it, it's just what I think it is but it  would be wrong.

we can solve this via the kinematic equation:

where the vertical velocity is zero and so:

since the height of the building is 29.3 meters then:

the ball was in motion for approximately 2.45 seconds

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.