Everyday occurrences, like identifying criminals in police lineups, are often improved by using psychological experimental procedures, like double blind procedures.
Option D is correct
<h3>What does test procedure?</h3>
A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over.
<h3>Why is double-blind experiment difficult?</h3>
A double-blind procedure requires that both the researcher and the subjects are unaware of the process. therefore the researcher that is analyzing the subjects would have no information about the subjects receiving the new drug (which is the treatment group) and those who are not receiving the drug (which is the control group).
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The answer would be redbank
Answer:
see when people migrate from place a to place b , place a population rate decreases and place b population rate increases .
Haha, this will be fun
Let's see, when I was around 9 I had a painful accident, I was learning how to ride a bike and then...BOOM! I crashed into my sister, my sister was fine but my head was ble#ding, my left ankle was covered with blo#d, and the skin from my hands was peeled off and my thumb's nail was cracked, what caused this? Welling at the park I practiced boking at had a ton of Benches and unfortunately...I crashed onto one, I was rushed to the doctors and they said that everything was fine and would heal in a couple of weeks but the main problem was my ankle, somehow it got infected and I was in bed for 2 weeks! After that 2 weeks, I went back to the doctors and they said that I can walk but I can't run. after that accident, I never touched a bike ever again, as a 9-year-old, I thought I was going to die! What helped me cope? My parents bought me a bunch a toys and a dog, my sister(twin sister) also helped me recover by helping out mentally, I seriously thought that was going stir crazy since every time I ran for too long, my vision would go completely black for at least a soild 30 seconds. Ultimately, my family's love and care helped me recover.
brainliest please haha?
