06.21.24 And Additional From 06.18.24 Flashcards
- definite plan for obtaining a sample from a given population
- refers to the technique or the procedure the researcher would adopt in selecting items for the sample
- may as well lay down the number of items to be included in the sample i.e., the size of the sample.
Sample design
what is a sample design
- definite plan for obtaining a sample from a given population
- technique/ procedure the researcher would adopt in selecting items for the sample
- may lay down number of items to be included in the sample i.e., the size of the sample.
Five Common Types of Sample Designs
- Simple Random Sampling
- Stratified Sampling
- Systematic Sampling
- Convenience Sampling
- Cluster Sampling
every member of the population has an equal chance of being selected
simple random sampling
- population is divided into subgroups based on shared characteristics
- certain number of participants are then randomly selected from each subgroup to ensure the sample reflects the proportions of the entire population
stratified sampling
- population is arranged in a list, and then every nth individual is chosen
- can be efficient but relies on a good, random starting point
systematic sampling
- easiest accessible members of the population are chosen
- quick but risks bias towards readily available participants
convenience sampling
- population is divided into groups, and then a random selection of groups is chosen
- all members within the chosen group are then included in the sample
- can be efficient in geographically dispersed populations but may miss out on certain subgroups not well-represented in the chosen groups
cluster sampling
Overtaking
- should be avoided
- if needed, inform climber in front courteously
ideal distance between you and person in front
2 meters
Pacing
- start w/ slow pace
- ideal pace = slowest/ with heaviest load
- do not let anyonelag behind
- if need to stop, inform lead man
Signaling:
to stop
1 long whistle blast
Signaling:
proceed
2 short whistle blast
Signaling:
international mountain distress signal
6 whistle blast / minute
Signaling:
“aid on the way”
3 whistle blast
who can only signal
- team leader (lead man)
- middle man
- sweeper
Descending
- dig first with your heel or side of your foot to maintain balance
- if too steep or slippery, face wall and step downwards as if walking down a ladder
River crossing
- can be dangerous
- assess river, look for natural bridges or shallower portions
- if in doubt, do not cross
- loosen shoulder strap to serve as floaty in case of emergency
- bend knees
what materials should be used to make trail signs
natural materials (stick and stones)
should be closed and blocked if not use
side trails
bad trail etiquette
short-cutting
if lost,
STOP
STOP
- stop
- think
- observe
- plan
Four steps for land naviagtion
- know where you are
- plan the route
- stay on route
- recognize the objetive
Three types of navigation
- celestial
- GPS
- maps and compass